Bilan de l`activité de recherche du groupe chimie

Transcription

UMR 5215 INSA-CNRS-UPS, IRSAMC
LPCNO Research Assessment
LPCNO, IRSAMC
135, avenue de Rangueil ; 31077 Toulouse Cedex ; France
http://lpcno.insa-toulouse.fr/
Xavier Marie, director ([email protected], +33(0)5 61 55 96 51)
Romuald Poteau, deputy director ([email protected], +33(0)5 61 55 96 64)
Table of contents
(electronic version : click on an entry to go to the corresponding section)
RESUME ....................................................................................................... 1
LPCNO ASSESSMENT ........................................................................................ 1
GENERAL PRESENTATION................................................................................. 1
INFRASTRUCTURES ....................................................................................... 4
HUMAN RESOURCES ...................................................................................... 4
TRANSVERSAL OPERATIONS AND STRIKING FACTS ........................................................ 6
GOVERNANCE - RESOURCES .............................................................................. 7
SUMMARY ................................................................................................ 8
ANNEXES ..................................................................................................... 10
ANNEXE 1 : ENSEIGNEMENT ET FORMATION PAR LA RECHERCHE, INFORMATION ET CULTURE
SCIENTIFIQUE ET TECHNIQUE ............................................................................ 10
ANNEXE 2 : ACTION DE FORMATION PERMANENTE DES PERSONNELS DE L’UNITE ....................... 13
ANNEXE 3: HYGIENE ET SECURITE ...................................................................... 15
RESEARCH GROUPS ........................................................................................ 17
NANOSTRUCTURES AND ORGANOMETALLIC CHEMISTRY, NCO .......................................... 19
NANOMAGNETISM, NM .................................................................................. 27
NANOTECH, NTC ....................................................................................... 33
QUANTUM OPTOELECTRONICS, OPTO ................................................................. 39
PHYSICAL AND CHEMICAL MODELLING, MPC ........................................................... 45
LIST OF PUBLICATIONS .................................................................................... 53
NANOSTRUCTURES AND ORGANOMETALLIC CHEMISTRY , NCO ......................................... 55
NANOMAGNETISM, NM .................................................................................. 65
NANOTECH, NTC ....................................................................................... 75
QUANTUM OPTOELECTRONICS, OPTO ................................................................. 83
PHYSICAL AND CHEMICAL MODELLING, MPC ......................................................... 103
LPCNO Assessment – Table of Contents
RESUME
La caractéristique de l‘UMR 5215, intégrée à l‘IRSAMC 1 , est de rassembler des physiciens et des
chimistes qui sont tous concernés par la synthèse, l‘étude des propriétés physiques et la modélisation de
nano-objets. Cette recherche coordonnée et multidisciplinaire a des retombées très positives aussi bien
sur le plan fondamental qu‘appliqué. Outre les thématiques propres développées au sein de chaque
équipe, de nombreux sujets sont développés à leur interface. Le LPCNO, né au 1 er janvier 2007, s‘est
structuré autour du Laboratoire de Nanophysique, Magnétisme et Optoélectronique (LNMO, EA), unité de
recherche de l‘INSA de Toulouse. Une partie de l‘équipe chimie théorique du Laboratoire de Chimie et
Physique Quantiques (LCPQ, IRSAMC) a rejoint le dispositif, la création d‘une équipe de chimie
expérimentale ayant joué un rôle structurant. Le laboratoire est aujourd‘hui structuré en cinq équipes :
Nanostructures et Chimie Organométallique (NCO) : cette équipe, qui joue un rôle clef dans le
laboratoire, maîtrise les conditions de synthèse de nano-particules (NP).
Nanomagnétisme (NM) : les thématiques de cette équipe concernent l‘étude des propriétés
électroniques, magnétiques et de transport de NP, souvent en étroite collaboration avec l‘équipe NCO.
Nanotech (NTC) : cette équipe développe des techniques d‘assemblage dirigé et d‘adressage électrique
de nano-objets sur des surfaces avec, pour objectif ultime, de réaliser des nano-dispositifs les intégrant.
Optoélectronique quantique (OPTO) : cette équipe s‘intéresse à l‘étude des états électroniques dans
les nano-objets et son expertise de spectroscopie optique est tout à fait complémentaire des équipes
précédentes.
Modélisation physique et chimique (MPC) : cette équipe modélise les propriétés électroniques de
molécules, biomolécules et matériaux, et a développé une thématique « chimie de surface » depuis son
intégration au LPCNO.
La jeunesse du laboratoire peut aussi se juger à la moyenne d‘âge de ses chercheurs et enseignantschercheurs (39 ans). Dès la phase de gestation de cette nouvelle entité il a été veillé à renforcer
différents axes de recherche, stratégiques pour assurer la réussite de l‘opération scientifique, en
particulier en mettant en avant des profils de postes à l'interface physique-chimie.
L‘intérêt d‘un tel laboratoire pluridisciplinaire se mesure au travers des opérations scientifiques interéquipes. Une action importante, qui a contribué à structurer le LPCNO dès son lancement, est orientée
vers des traitements oncologiques par des NPs qui pourront servir soit de marqueurs luminescents soit
d‘agents d‘hyperthermie très localisés. Deux nouvelles opérations transversales impliquant physiciens et
chimistes du LPCNO viennent de débuter: mise au point de nouveaux nanomatériaux pour des
applications photovoltaïques et développement de jauges de contraintes ultra-sensibles pour
applications de type papier électronique ou écrans tactiles souples. Des contrats avec des partenaires
industriels importants impliquent ou ont impliqué plusieurs équipes du laboratoire et montrent que les
thématiques qui sont développées dans ce nouvel ensemble sont aussi en prise directe avec des
préoccupations industrielles. Nous hébergeons en outre dans le laboratoire une start-up (SARL
Nanomeps).
Le LPCNO est caractérisé par une très forte dynamique, comme en atteste en particulier le fort soutien
à la fois en termes d‘infrastructure et de postes par le CNRS, l‘INSA et l‘UPS, ainsi que la participation
au RTRA STAE2, au pôle de compétitivité cancer-biosanté, à un CPER (2007-2012), à 6 projets ANR dont
un est coordonné par le LPCNO3, à des projets internationaux soutenus financièrement. Depuis janvier
2007, le LPCNO a produit plus de 120 publications dans des revues internationales à comité de lecture,
déposé trois brevets (trois autres sont en cours) et ses chercheurs ont présenté environ 30 conférences
invitées.
Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes, Fédération de 4 UMR
Science et Technique Aéronautique et Espace
3 Trois nouveaux projets ANR vont débuter en 2009, dont deux coordonnées par le LPCNO
1
2
LPCNO – Résumé du bilan d‘activité
GENERAL PRESENTATION
The key characteristics of the Laboratory of Physics and Chemistry of Nano-Objects (LPCNO),
which is a member of the Research Federation IRSAMC4, is to bring together physicists and
chemists who are all involved in the synthesis, the assembly, the study of the physical
properties and the modelling of nano-objects. This coordinated and multidisciplinary research
has an important impact on both a fundamental and an applied level. Besides the specific
research activity developed within each group, numerous subjects are developed at their
interface.
Even if the official birth certificate of the LPCNO as a ―mixed‖ research entity INSA-UPS-CNRS
indicates January 1st, 2007, we can date the creation of this laboratory back to January 20th,
2006. On this day the start-up committee of the laboratory started its work.
One year before (February 2005), the LPCNO project was selected by the scientific council of
the ―Tremplin Recherche‖ and presented in the French Senate in Paris. It was the only MidiPyrénées project among the 20 selected national innovative projects.
Figure 1: Organization Chart of the LPCNO (June 2009).
4
IRSAMC : Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes (FR 2568)
LPCNO - 1
The LPCNO formed itself around the Laboratory of Nanophysics, Magnetism and
Optoelectronics (LNMO, EA 3937), a research laboratory of INSA Toulouse. Part of the
theoretical chemistry group of the Laboratory of Chemistry and Quantum Physics (LCPQ IRSAMC, UMR 5626) decided to joint the LPCNO project. Finally the creation of a new group of
experimental chemistry played a very important role in the creation of this new structure. This
project followed a long tradition of collaboration between Bruno Chaudret (organo-metallic
experimental chemistry), the theorists from LCPQ and the experimental physicists of the
LNMO.
We planned initially to structure the laboratory in four groups. One of them split into two,
having quickly reached a sufficient, critical size for it (Nanotech and Nanomagnetism). Today,
the Laboratory is composed of five research groups (Figure 1).
Nanostructures and Organometallic Chemistry (NCO) : this young group (created in 2006),
which plays a key role in the laboratory, masters the conditions of synthesis of Nano-particles
(NP) with two main applications: i) microelectronics and the nanomaterials; ii) detection and
the treatment of cancers. Both axes are investigated in strong collaboration with the groups of
physics of the laboratory. The target is to define the conditions of chemical synthesis allowing
the control of the size, the shape and the surface states of particles in connection with the
aimed properties. In the field of nanomaterials and nanotechnologies the control of the 2D and
3D organization of particles is also very important. The objective is to increase the expertise in
the synthesis of anisotropic magnetic NP to get a better control of their growth on substrates.
The synthesis and the 3D organization of anisotropic magnetic NP are also developed with the
aim of obtaining permanent magnets at high temperature (ANR project Magafil, coord. G.
Viau). Finally, the growth of bimetallic particles within the framework of a European program
is pursued. Since a few months, a special effort has been devoted to the modification and the
functionalization of NP surfaces. At the same time for the development of nanoparticles in
interaction with living cells and for the research activity connected to the development of new
materials, it is essential to master the external envelope of the synthetized nanoparticles:
nanometer sized oxide layers at the surface of iron particles to make them biocompatible;
Core-shell semiconductor particles for medical imaging and future photovoltaic applications;
metal on metal growth to induce new properties (chemical synthesis coupled to a sputtering
machine); attachment of an organic and charged crown for the manipulation and the
controlled deposition on substrates.
Nanomagnetism (NM) : the research subject of this group concerns the study of the
electronic, magnetic and transport properties of NP, often in strong collaboration with the
group NCO. The activity is centred on the study of (i) the effects of size reduction on the
magnetic properties such as the magnetization (contribution of spin, and orbital), the
anisotropy, in particular to see how these characteristics can be modulated by varying the
shape and the chemical composition of nano-objects. (ii) the properties of magneto-transport,
in particular the properties of magnetoresistance in the regime of Coulomb blockade and the
role of organic barriers and the organization in super-lattices. (iii) the optimization of
magnetic nano-objects for applications in the field of the medicine or biology. The group
makes a great effort in the development of new set-ups in the field of the growth of magnetic
nanostructures in the new room of synthesis of nano-objects in LPCNO (operational since spring
2009). The idea is to develop a system which combines the classical techniques of thin films
growth (evaporation, sputtering) and the methods of soft chemistry which allows to synthesize
nano-objects with well-controlled shapes and sizes (ANR project Batmag). This set-up
composed of a ultra-high vacuum sputtering machine coupled to a glove box will allow to
alternate the stages of physical and chemical growth with a transfer under controlled
atmosphere; this entire system should work in autumn 2009. Other experimental developments
are planned. One of them is very challenging but also very promising : to probe the magnetic
properties of a nano-object of some hundreds of B (or less) in a wide range of temperatures
LPCNO - 2
(2K-300K) through the use of a mechanical carbon nanotube resonator. A project of
elaboration of an original device of magnetic moment measurements of a NP was linked to a
new lecturer (―Maître de Conferences‖ INSA) position in 2009.
Nanotech (NTC): This young group develops, at the interface between Physics, Chemistry and
Nanotechnologies, reliable and low-cost techniques for both the directed assembly of nanoobjects onto specific areas of substrates and their electrical nano-addressing. Its final goal is
to study the original physical properties of these nano-objects and to exploit them in
functional nano-devices (gas sensors, strain gauges, electro-optical devices…). Two kinds of
nano-objects are used: colloidal nanoparticles elaborated by chemical synthesis (collaboration
with the NCO group and the LCC laboratory) and silicon nanocrystals fabricated by ion
implantation at ultra-low energy and thermal annealings (collaboration with the CEMES
laboratory). Another strong activity of the Nanotech group concerns various nanocharacterizations by Atomic Force Microscopy (AFM) and its derived electrical modes as Kelvin
Force Microscopy (KFM), Electric Force Microscopy (EFM) or Scanning Capacitance Microscopy
(SCM).
Quantum Optoelectronics (OPTO) : this group is specialized in the study of the electronic
properties of nano-objects and its expertise based on optical spectroscopy is complementary to
the other LPCNO groups. The main research topics concern the control by light of individual or
collective spin states in semiconductor nanostructures. The key points are: i) the investigation
of the electron and nuclear spin dynamics in semiconductor quantum dots (ii) the coherent or
optimal control of the exciton / biexciton system in a single dot by means of shaped optical
pulses (collaboration LCAR-IRSAMC) (iii) the spin dynamics in new nanostructures based on
dilute nitride semiconductors (iv) the study of the electric injection of spin-polarized carriers
in hybrid FM/Semiconductor heterostructures. The wealth of these systems results from the
variety of present spins: conduction electrons, valence holes, paramagnetic centres, atomic
nuclei, and their interactions (ANR project MOMES). The objective is the understanding and
the control of the initialization, reading and coherent manipulation steps of a single confined
electronic spin state, prepared by polarized light pulses or by electric spin injection, in the
framework of the ultimate aim for quantum information processing. In parallel to this activity
on the spin physics, the OPTO group is also involved in applied research subjects on (i) band
structure engineering of optoelectronic devices for optical telecommunication (ANR projects
AHTOS and AROME) and (ii) optical characterization of nano-materials and devices for space
and photovoltaic applications.
Physics and Chemistry Modelling (MPC): the subjects investigated in this group cover a wide
spectrum : interaction of biomolecules within membranes, homogeneous catalysis and
organometallic reactivity (ANR projects Bili and Biopolycat), structural studies of biopolymers
and peptidomimetics, effects of surface species on the properties of metallic clusters and NPs
(ANR project Siderus), reactivity of metallic complexes grafted on silica surface, modelling of
periodic systems - in interaction with experimental groups in Toulouse, as well as with national
and international partners. Two important methodological projects achieved in the framework
of standard methods of molecular Quantum Chemistry structured the researches within the
group: the development of molecular pseudopotentials which allow to accurately model
chemical groups, albeit at low cost, and ab initio molecular dynamics methods. The arrival of
I. Gerber (Lecturer, Maître de conferences INSA, 2007) opened new perspectives of
applications and developments in the domain at the frontier between solid state and surface
chemistry. Beyond structural and energy properties, spectroscopy is at the heart of the
interaction between theoreticians of the MPC group and experimentalists, in particular liquid
and solid-state NMR. This technique brings detailed information, but assistance by theoretical
chemistry is often an imperative for complex systems for which no reference data exist. The
MPC group has strongly developed this useful expertise for biological systems as well as for
clusters and organometallic NPs.
LPCNO - 3
INFRASTRUCTURES
The LPCNO is located at the premises of the Physics Engineering Department of the
National Institute of Applied Sciences (INSA) in Toulouse. We share the building together with
the teaching activities (lecture rooms, teaching laboratories,…). This favours the interactions
between research and teaching in the field of nanosciences and nanotechnology, which is a
very good point. However, the rather fast expansion of the laboratory (increase of the
workforce of 30 % within three years) leads to a lack of space for the development of the
research groups. We can point out some striking facts that show the adaptation of the
premises to the new scientific configuration: thanks to the strong support of INSA, ex-nihilo
creation of a experimental chemistry laboratory (6 hoods) dedicated to the synthesis of
nanoparticles by organometallic chemistry, operational since January, 2006; renovation of two
rooms in the basement to accommodate the computing resources of the Physics and Chemistry
Modelling group; renovation of an experimental room for the Nanotech group (40 m2
approximately, operational since spring, 2008). More recently, a lecture theatre of the
department was converted into a new experimental room for the synthesis of nano-objects
(~100 m2), including in particular the installation of 8 new supplementary hoods and an original
experiment of hybrid growth based on a sputtering machine coupled with a glove
compartment. This new room has been operational since spring, 2009.
HUMAN RESOURCES
Post-Doc/Invited researchers
Creation of the
LPCNO
Technical staff
PhD
CNRS Researchers
Full Professors
50
Assistant-Professors ("Maître de Conférences)
Integration of the MPC group
and creation of the NCO group
45
Number of people
40
35
30
25
20
15
10
5
0
2005
2006
2007
2008
2009
Figure 2: Evolution of the LPCNO research staff from 01/2005 to 06/2009
LPCNO - 4
In June 2009, the LPCNO is composed of 24 permanent researchers/lecturers (14 INSA
lecturers, 6 UPS lecturers, 4 CNRS researchers), 3.5 technicians/engineers/administrative
persons and 19 non-permanent researchers (6 post-doc/invited researchers/ATER and 13 PhD).
Men/women parity is fair, with 16 women vs. 31 men. The ‗youth‘ of the laboratory can be
judged by the mean age of the permanent researchers and lecturers (39 years old in 2009).
From the starting phase of this new entity, a special care was taken to strengthen various
areas of research, strategic to insure the success of the scientific operation, in particular by
opening new research positions at the interface between physics and chemistry. Figure 2
displays the evolution of the laboratory research staff from October 2005 to June 2009. In
addition to the LNMO permanent researchers (10) and the MPC group from the laboratory LCPQ
(5), the new human resources were brought first by INSA :
- 2006: creation of a Professor position in 28th section (G. Viau) in order to diversify the
scientific expertise in the chemical synthesis of nanoparticles and to insure the scientific
responsibility of the NCO group.
- 2006: 1 lecturer (Maître de Conferences) position in 28th section (S Lachaize), to strengthen
the NCO group. Two other young lecturers from the University Paul Sabatier (C. Nayral and F.
Delpech) and a research engineer (K. Soulantika) who were working in different laboratories in
Toulouse, decided to join the new NCO group which thus reached a reasonable size and played
very quickly a central role in the LPCNO laboratory.
- 2007 was a prolific year:
1) 1 INSA Lecturer position in 28th section (I. Gerber) in the MPC group
2) 1 INSA Lecturer position in 28th section (A. Balocchi) in the OPTO group
3) 1 INSA Lecturer position in 28th section (T. Blon) in the NM group
We also received a support from the University Paul Sabatier with the creation in 2008 of a
Professor position in 31th section (theoretical and analytical physical chemistry) which allowed
the promotion of a lecturer IUF in the MPC group (L. Maron). At the same time, another
lecturer from UPS University (M. Respaud) obtained a Professorship at INSA.
In 2008, the LPCNO obtained two new permanent CNRS positions (CR1) in sections 14 and 6.
The first one allowed K. Soulantika, who was a research engineer on contracts (SAIC INSA), to
stabilise her important, creative role in the NCO group. B. Urbaszek, who was lecturer at INSA
and researcher in the OPTO group of LPCNO, also obtained a CNRS (CR1) position in section 6.
The lecturer position he left vacant at INSA allowed to recruit a new young researcher in the
Nanomagnetism group (B. Lassagne, September 2009). However 2008 was also a very sad year
for the laboratory with the death of our colleague and friend J.-P. Daudey in October. JeanPierre was very active in the creation of the laboratory and health problems prevented him
from managing the laboratory as it was initially planned. L. Perrin, young researcher in section
16 (CR2), who has been initially recruited in the URA 2096 (CEA Saclay, CNRS) in 2005, joined
the MPC group in spring 2008.
2009 will see the recruitment in the NCO group of a young lecturer (UPS), on a subject at the
interface between physics and chemistry, and an INSA lecturer who will strengthen the
Nanomagnetism group. We shall underline here that the creation phase of the laboratory came
along with a strong support by INSA, even on the chemistry side of the LPCNO research, while
the laboratory is integrated into the Department of Physics. The LPCNO since then took care to
coordinate the new research position demands towards both university supervision (UPS and
INSA). Then the University Paul Sabatier and the CNRS were very helpful to strengthen the
structure (as it is summarized above). Since the experimental chemistry (sections 32/33) and
the theoretical chemistry (section 31) are not represented in INSA, the new positions in LPCNO
with a chemistry profile or in the interface physics/chemistry are now oriented towards the
UPS supervision and the demands with a purely physics profile towards the INSA supervision.
LPCNO - 5
However we regret the weakness of the accompaniment of the research operations by the
technician/engineer and administrative staff. As shown in figure 1, the human resources in this
field correspond to 3.5 full time positions ; all of them from INSA (no support from CNRS,
neither from UPS). Three persons share their activity with the teaching physics department: M.
Fortune (tech., 50%) for the administrative/financial management ; S. Cayez (IE, 50%) for
structural characterization, C. Crouzet (tech., 50%) for electronics. The latter will be absent
up to the end of 2010 on maternity leave (―Congé parental‖). M. Mourafik (tech, 100%) is in
charge of all the logistics in the laboratory and works for all the groups; in particular he is
responsible for the liquid nitrogen and liquid helium supply. F. Fernando (tech, 100% INSA),
who is not permanent, ensures the administrative and financial management for the CNRS and
UPS credits ; he works under the supervision of R. Poteau (LPCNO Deputy director); M. Fortune
is responsible for the INSA credits ; she works under the supervision of X. Marie.
We hope to have soon a CNRS support for an engineer position.
The increase of the number of permanent researchers was accompanied by a strong increase of
the non-permanent staff which was multiplied by 2.5 since 2005 reaching ~20 phD and postdocs in 2009 (with MENESR, BDI and ANR grants). The laboratory accompanies these nonpermanent researchers to find engineer or research positions after their stay in the LPCNO. In
2009 for instance, four post-doc or ATER researchers got a permanent position (N. Barros, V.
Guieu, J. Maynadié and B. Lassagne as ―Maître de conferences‖ in the University of Perpignan ,
the University J. Fourier in Grenoble, the University Montpellier 2 and INSA Toulouse
respectively ; A. Cornejo got an assistant professor position in the University of Pamplona
(Spain). In 2009, two former LPCNO phD students also got a CNRS position (D. Lagarde as a
Research Engineer in the University of Clermont-Ferrand, L. Lombez in the IRDEP Laboratory in
Chatou as a ―Chargé de Recherche‖), whereas two other former LPCNO PhD students got a
university position, one at Toulouse University (L.-M. Lacroix as ―Maître de Conférences‖ in
University Toulouse 3) and another one at the ENI in Tarbes (L. Lacroix as ―Maître de
Conférences‖).
The large increase of the LPCNO research staff started to raise severe problems linked to the
lack of space in the building. We have no more room for new experiments and offices for
students and researchers. We hope that the CPER project ―LPCNO‖ which was selected for the
second round (2010-2013) will become very soon a reality. This project (~5 M€) includes both a
new complementary building (~900 m2) and new equipments.
TRANSVERSAL OPERATIONS – STRIKING FACTS
An important transversal research activity of the LPCNO concerning the oncologic
treatment by nanoparticles, which can serve either as luminescent markers or as very localized
hyperthermic agents, was selected as an innovative project by the Toulouse centre of
excellence ―Cancer-Bio-Santé‖ and is supported by the Midi-Pyrénées Regional Council. It is
also one of the 6 national projects financed at the national level by the foundation
―InNaBioSanté‖ in 2008 (http: // to www.innabiosante.fr/). This research activity, which
involves most of the LPCNO research groups, is also done in close collaboration with the
Institute C. Régaud (INSERM 563) and the Laboratory of Coordination Chemistry (UPR 8241).
This project has been strongly supported by the University Paul Sabatier through the first
biennial call of the scientific council.We also develop an original method for the synthesis of
nano-structures combining the physical methods of ultrahigh vacuum deposition and the
methods of chemical synthesis, allowing to integrate NPs into devices (ANR Batmag, and
Region Midi-Pyrénées project). Both the NCO and NM groups are involved in this important
program.
LPCNO - 6
Two new transverse operations involving LPCNO physicists and chemists have just begun in
2009. The first one concerns the development of new nano-materials for photovoltaic
applications. In addition to the two groups of the LPCNO (NCO and OPTO), this operation also
involves a strong collaboration with the CIRIMAT (UMR 5085), in Toulouse, and the IRDEP (EDFCNRS-ENSCP, UMR 7174) in Chatou. This project has been supported by the University Paul
Sabatier through its biennial calls of the scientific council. The second new transverse
operation involves the Nanotech and NCO groups. It concerns the development of highly
sensitive strain gauges based on metal nanoparticle films deposited on flexible substrates. This
opens up the possibility to integrate them into multimedia applications such as tactile
electronic papers or multi-touch flexible displays (collaboration MOTOROLA).
Moreover, research contracts with important industrial partners (Freescale, Alcatel-Thales,
EDF, France Telecom R*D, CNES, ONERA…) involve (or involved) several groups of the
laboratory and show that the research subjects developed in this new research laboratory are
also in direct connection with industrial applications. Let us recall that the LPCNO
accommodates a start-up (Nanomeps, www.nanomeps.fr), which was simultaneously created
with the laboratory and which synthetizes and sells nanoparticles for various applications.
Different research projects of the laboratory involve this start-up company.
Finally the LPCNO develop strong international collaborations with official and financed
research operations : CNRS ―PICS‖ with Berkeley University (USA), CNRS ―PICS‖ with Material
Science Institute Hanoi (Vietnam), European Inter-Reg IIIA and IVA, University de la Rioja and
University de Navarra (Spain), PRA project with IOP Beijing (China), MOU project with NIMS,
Tsukuba (Japan). The LPCNO researchers are also involved in several European projects: STREP
« SA-Nano » (2006-2008 : Tel Aviv, Munich, Toulouse) ; ITN « Spin-Optronics » (2009-2012 : 10
european partners) ; COST 288 (2004-2007 : 13 partners) ; COST MP805 « Novel Gain Materials
and Devices Based on III-V-N Compounds» (2009-2013 : 15 partners) ; European Network for
Actinide Science (ACTINET)
GOVERNANCE - RESOURCES
The size of the laboratory, 28 permanent employees, offers us the advantage of
flexibility and short reaction time. The governance of the laboratory is structured by its
director and deputy director. An executive committee (―Comité de direction‖), constituted by
the directors and the heads of the five research groups, regularly meets, according to the
current events and the decisions to be taken (project calls, human resources….). Every group
leader is in charge of leading his(her) group at the same time on a scientific and administrative
level and of informing the group members about the decisions taken within the executive
committee and the laboratory council. This laboratory council gathers in general assembly
approximately every three months to take important decisions and to discuss the achievements
of the laboratory. In addition, important collective tasks are performed by
lecturers/researchers : J. Grisolia is the LPCNO Web-Master, H. Carrère is in charge of the
LPCNO communications and C. Nayral and S. Lachaize organize the LPCNO seminar (once a
month typically ; see the list on lpcno.insa-toulouse.fr ) and the IRSAMC seminar respectively.
F. Jolibois co-organized the 2009 annual meeting of the IRSAMC research federation.
The LPCNO budget is presented in figure 3. Besides the ―quadriennal‖ financing (INSA, CNRS,
UPS), ANR research projects and industrial contracts, it is necessary to underline the CNRS
support via specific coordinated actions (‗Crédits d‘intervention INP, INC‘) which allowed us to
obtain significant funding in 2007 (40 k€), 2008 (70 k€) and 2009 (44 k€). This was very useful
during the LPCNO creation period when many new research experiments were set-up. We also
coordinate a PPF project (NEMO, Nano-objects for Electronics, Magnetism and Optics; 20072010), which allows to amplify collaborations between several laboratories of the Toulouse site
LPCNO - 7
: CEMES, LNCMI, LAAS, LCC, LPCNO. The recognition at the local level (UPS, INSA, PRES,
Region) of our scientific projects was besides translated by obtaining several PhD and post-doc
grants, BQR financing (24 k€ UPS + 8 k€ INSA in 2007, 20 k€ INSA in 2008 and 20 k€ in 2009).
The common laboratory costs (seminars, papers, telephone, photocopy, mail…) are financed
through the ―quadriennal‖ financing (20 % of the INSA, CNRS and UPS money covered these
costs). Note that most of these common costs are shared with the Physics Engineering
Department (teaching activity). Up to now, we did not have to take in addition overheads on
other research contracts (ANR, industry…).
900000
800000
Other
Amounts / in €
700000
Territorial collectivity
International projects
600000
ANR + french projects
500000
IUF
CNRS (specific financing+other)
400000
UPS (BQR)
INSA (BQR)
300000
CNRS (quadriennal financing)
200000
UPS (quadriennal financing)
INSA (quadriennal financing)
100000
0
2007
2008
Figure 3. Laboratory budget in 2007 and 2008 (except for the ANR or territorial collectivity contracts, it
does not include salaries)
SUMMARY
The LPCNO is characterized by a very dynamic evolution, as documented by the
particularly strong support in terms of infrastructure and researcher/lecturer positions by
CNRS, INSA and UPS as well as the participation to the RTRA STAE (Science et Technologie pour
l’Aéronautique et l’Espace), to the centre of excellence ―Cancer-biosanté‖, to one CPER
project ( 2007-2012 ), to 6 ANR projects among which two are coordinated by the LPCNO. Since
January, 2007 (creation date of the laboratory), the LPCNO produced more than 120
publications5 in peer-reviewed international journals (fig. 4), 5 book chapters and deposited
three patents (three others are in progress) and his(her) researchers presented 31 invited
conferences. LPCNO members were chair or co-chair of program committees of 2 conferences,
most of them international. Finally they participated in the program committees of 10
international conferences and workshops, and 1 national conference.
This was possible thanks to the large number of young lecturers/researchers of the
laboratory who put a lot of enthusiasm into the teaching and research activity and participate
as well to the collective life of INSA and UPS.
5
This represents 1.7 major publications per faculty member per year in less than 3 years.
These numbers are related to the number of people, not the number of full-time ―researcher-equivalent‖
people, whereby faculty members with teaching positions count for half a researcher. Using this rule, we
get approximately 3 major publications per faculty full-time ―researcher-equivalent‖ per year.
LPCNO - 8
The scientific objectives of each group are well identified together with transversal projects
(involving different LPCNO groups) and collaborations at the national and international level,
as we shall see in the detailed reports presented below.
Figure 4 : Histogram of LNMO (2005-2006) and LPCNO (2007-present) publications per year in
the period January 2005 - June 2009, ranked by Impact Factors (IF). Analysis achieved with the
―advanced search‖ tool of the Web of Science, with the keywords:
ad=((LPCNO or "Lab Phys* & Chim* Nano objets" or "Lab Phys* & Chim* Nanoobjets" or "Lab Phys*
& Chim* Nano Objects" or "Lab Phys* & Chim* Nanoobjects") or (LNMO or "Lab Magn* Nanophys* &
Optoelect*" or "Lab Nanophys* Magnet* & Optoelec*"))6
.
6
Since January 2008, almost all our publications can be found with the Web of Science by entering
―LPCNO‖ in the address field, whereas several articles published in 2007 can be found by entering
―Laboratoire de Physique et Chimie des Nano-Objets‖ and other variants.
LPCNO - 9
Annexe 1 : Enseignement et formation par la recherche, information et culture
scientifique et technique
The key characteristics of the LPCNO laboratory is that it is composed of 85% lecturers (there are only 4
permanent CNRS researchers). We emphasize that three of these CNRS researchers also give lectures in
INSA or at the University. All the LPCNO lecturers are strongly involved in teaching activities and
administrative tasks linked to teaching both at a Bsc or Master level. In addition to their compulsory
teaching activities, several LPCNO lecturers are also very active outside INSA and the university to spread
scientific culture for teenagers or large public.
The LPCNO members have also been elected in different INSA and University councils:
- A. Balocchi, B. Viallet, L. Ressier, M. Mourafiq, X. Marie : INSA Physics Department Council
- J. Grisolia : INSA “Administration” Council
- T. Amand, X. Marie : INSA Scientific Council (X. Marie :Vice-President)
- R.Poteau : Université Paul Sabatier « UFR PCA » Scientific council (since 2006), Chemistry department
council (2004-2008),
- F. Jolibois, Université Paul Sabatier Chemistry department council and “UFR PCA” educational
committee (since 2008)
The details below are written in french because of the very specific organization of the french higher
education system (the LPCNO lecturers work both in INSA and the Université Paul Sabatier which have
rather different policies).
If necessary, the foreign referees can contact X. Marie ([email protected]) or R. Poteau
([email protected]) to get more information on these sections.
Chercheurs CNRS impliqués dans l’enseignement :
T. Amand (DR CNRS)
Cours et TD de Mécanique quantique (3ème et 4ème année INSA Physique)
Physique du solide avancée : Master II Physique de la matière UPS INSA
B. Urbaszek (CR CNRS)
Cours « Electronique du Solide » (4ème année INSA Physique)
TD Mécanique Quantique (4ème année Physique)
Responsabilités administratives et Pédagogiques des Enseignant-chercheurs du LPCNO
B. Viallet (McF INSA) :
- responsabilité de la 3ème année pré-orientation IMACS de l‘INSA de Toulouse (~80 étudiants/an ; depuis 2006)
L. Ressier (McF INSA) :
- responsabilité de la 4ème année, département Génie Physique de l‘INSA de Toulouse (~50 étudiants/an ; depuis
2000)
- création en 2007 et responsabilité d‘une plateforme de microscopie à force atomique (AFM) au sein de l'Atelier
Inter-universitaire de Micro et nano-Electronique (AIME), pôle Toulousain de la Coordination Nationale pour la
Formation en Micro nano-électronique (CNFM). (Au total, plus de 250 étudiants par an sont actuellement formés sur
cette plateforme.)
- membre du groupe national de réflexion « Nano » du CNFM sur l‘enseignement pratique des nanotechnologies
(depuis sa création en 2007)
- réalisation de plusieurs séminaires invités sur la microscopie à champ proche
-1-La nanoélectronique dans le CNFM
9èmes journées pédagogiques du CNFM, 23-25 Novembre 2006, Saint-Malo
-2-Formation pratique en microscopie à champ proche
CIME, Grenoble, 7 Février 2007
-3- Enseignements pratiques en microscopie à sonde locale à l’INSA de Toulouse
Forum des microscopies à sonde locale 2008, 17-21 Mars 2008,
-4-La microscopie à force atomique dans tous ses états
CIRIMAT, Toulouse, 30 Avril 2008
J. Grisolia (McF INSA) :
-responsabilité de la 5ème année, département Génie Physique de l‘INSA de Toulouse (~50 étudiants/an ;depuis 2006)
LPCNO - 10
-responsabilité de la gestion et de l‘encadrement des stages technologiques réalisés à l‘AIME pour le département
de Génie Physique et le département STPI
-participation à plusieurs salons d‘étudiants :
Janvier 2005 : INFOSUP – Toulouse (Parc des expositions)
Janvier 2006 : INFOSUP – Toulouse (Parc des expositions)
Janvier 2007 : SALON ETUDIANT – BORDEAUX (Bordeaux Lac)
Février 2008 : SALON ETUDIANT – MONTPELLIER (Corum)
Janvier 2009 : SALON ETUDIANT – BORDEAUX (Bordeaux Lac)
-réalisation de plusieurs séminaires invités sur la microélectronique, les nanotechnologies et les nouvelles
pédagogies :
-1- MICROELECTRONIQUE ET NANOTECHNOLOGIES : UNE MARCHE VERS LE NANOMONDE
Lycée MONTEIL – Rodez, 18 Mars 2007
-2- Développement d’un cours de E-learning.
GIP CNFM, 28 Novembre 2007, Ecole Nationale Supérieure des Télécommunications- Paris
-3- E-learning experience for micro-nanotechnologies using a combination of Adobe Presenter and Moodle
EWME 2008 — 7th European Workshop on Microelectronics Education 28–30 May 2008
-4- Expérience e-learning pour les micro-nanotechnologies utilisant une combinaison d’Adobe Presenter et Moodle
GIP CNFM, 26-28 Novembre 2008, Saint-Malo
-5- MICROELECTRONIQUE ET NANOTECHNOLOGIES: UNE MARCHE VERS LE NANOMONDE -.
Université du temps libre du Rouergue - IUT Rodez, 23 Octobre 2008 et 13 Novembre 2008
-6- E-learning experience for micro-nanotechnologies device elaboration
Rencontres Pédagogie et Formations d‘Ingénieurs, INSA Toulouse, 30 et 31 mars 2009
H. Carrère, P. Renucci (McF INSA ) :
- Responsable des Travaux Pratiques de Physique, 2ème année INSA (équivalent L2, ~400 étudiants/an)
G. Viau (Prof INSA) :
- Responsable du Master II (Recherche) « Nanosciences, Nanocomposants, Nanomesures (3N) », co-habilité avec
l‘UPS (20 étudiants/an ; depuis 2007)
X. Marie (Prof INSA, IUF) :
- Responsable des projets multi-disciplinaires de 4ème année INSA (~50 étudiants/an ; depuis 1992)
- Président (2007-2008) et Vice-Président (depuis 2009) de la section Midi-Pyrénées de la Société Française de
Physique
- Depuis 2007, une dizaine d‘intervention en collège et lycée de la Région Midi-Pyrénées pour diffuser la culture
scientifique expérimentale (Support expérimental : supra-conductivité, solaire photovoltaique, pile à
combustible, …)
T. Blon (MCF INSA) :
- Responsabilité administrative dans le suivi logiciel des enseignements et des étudiants du département de
Physique par le logiciel APOGEE (inscription administrative et pédagogiques des étudiants, notes, validation des
contrats d‘études, délivrance du diplôme, etc…)
J. Carrey (McF INSA) :
- Responsable au département génie physique pour la Journée Portes Ouvertes de l‘INSA, qui a lieu tous les ans
(depuis 2006)
J.-L. Gauffier (McF INSA)
- responsable de la plate-forme microcaractérisation de l‘INSA
- responsable du laboratoire de TP de physique
- directeur des études des années 4 et 5 au département de Génie Physique de l‘INSA
M. Respaud (Prof INSA) :
(Années 05 - 08 : Maitre de conférence à l'Université Paul Sabatier)
- Responsable de la salle d‘instrumentation (enseignement de Labview) et de nombreux modules associés pour le
Master I de l‘IUP AISEM. 2004-2007, Master I de l‘IUP ICM. 2005-2007, Master I de Physique fondamentale ; (5-6
filières avec ~ 200 étudiants formés par an). Co-responsable pour la rénovation des locaux de TPs pour le bloc
Instrumentation.
LPCNO - 11
- Responsable du Master 2 du parcours Instrumentation Capteurs et Mesures (ICM) de la formation Ingénierie du
Diagnostic, de l‘Instrumentation et de la Mesure (IDIM). 2007-2008. Première année de fonctionnement dans le
cadre de l‘habilitation commençant en 2007.
L. Maron (Prof UPS) :
- responsable de la 3ème année de licence de chimie (≈ 100 étudiants) depuis septembre 2007
- responsable des TP d‘atomistique & spectroscopie du L3 Chimie (≈ 100 étudiants) depuis septembre 2004
M. Pugnet (Prof UPS) :
-responsable du Parcours Sciences Physiques et Chimiques du MASTER1 de Physique.
De façon générale, les enseignants-chercheurs de l‘UPS ont beaucoup œuvré dans le cadre de la mise en place du
LMD dans le département de chimie. Les enseignants-chercheurs en chimie théorique se sont en particulier
fortement investis dans la proposition pour la période 2011-2015 d‘un master chimie, spécialité chimie théorique,
qui serait proposé à la fois en présentiel et à distance (classe virtuelle) ainsi, dans une moindre mesure, que dans la
mise en place d‘un nouveau master « Physico-Chimie du Vivant et de la Santé ». Ils contribuent en outre à la
reconnaissance de cette spécialité à l‘échelon international, l‘Université Paul Sabatier étant la seule université
française impliquée dans un master Erasmus Mundus « Theoretical Chemistry and Computational Modelling »,
habilité pour la période 2010-2015.
Opération : « les enseignants du secondaire à l’université »
En 2008-2009, le LPCNO a contribué à l‘opération « lien avec la politique scientifique d‘aujourd‘hui » de
l‘académie de Toulouse, dont l‘objectif est de faire le lien entre l‘enseignement scientifique actuel et la recherche
menée dans les laboratoires du campus scientifique toulousain. Des enseignants de collèges ou lycées viennent sur
une journée à la rencontre des chercheurs et des enseignants-chercheurs au sein d‘un laboratoire. Nous avons reçu
15 enseignants environ, le 15 janvier 2009. La matinée fut consacrée à une présentation rapide de la recherche
menée au LPCNO, suivie de 3 ateliers thématiques, permettant de mieux saisir la nature des recherches menées :
chimie et synthèse de NPs organométalliques, principe d‘un banc d‘hyperthermie en relation avec le projet nanooncologie, lasers et propriétés optiques de nanoparticules. Après un repas pris en commun entre participants et
intervenants, l‘après-midi fut consacrée à la visite des services de TP de physique de l‘INSA et de chimie de l‘UPS,
qui hébergent de nombreux appareils de pointe, proches de ceux utilisés dans le domaine de la recherche
académique ou industrielle.
L‘opération sera renouvelée en 2009-2010.
LPCNO - 12
Annexe 2 : Action de formation permanente des personnels de l’unité
T. Amand(DR CNRS)
Nov/Dec 2007
Mai 2009
M. Fortune(Tec, 50%)
Juin 2007
Mars 2008
Mars 2008
Avril 2008
Avril 2008
Juin 2008
Septembre 2008
Mars 2009
Avril 2009
La physique à N-corps des bosons composites,
Montpellier (cours M. Combescot)
Apports des Symétries en Matière Condensée : Théorie
des groupes, transitions de phase, cristallographie,
magnétisme, excitations
4 jours
L‘entretien professionnel
Notions générales de cultures administratives
Site internet
Mieux comprendre la culture asiatique
L‘Union européenne aujourd‘hui
Les risques liés à l‘utilisation des lasers
Powerpoint
La responsabilité pénale des fonctionnaires
La révision générale des politiques publiques
1 jour
2j
½j
2j
1j
1j
1j
½j
1j
S. Cayez (IE 50%, a intégré le LPCNO en décembre 2009)
Mai 2009
Habilitation électrique pour interventions sur des
équipements électroniques
Mai- Juin 2009
Labview
F. Fernando (Tec CDD, a intégré le LPCNO en décembre 2007)
Février 2008
Formation logiciel de gestion Nabuco pour les crédits
UPS à l'UFR PCA
Mars 2008
Formation logiciel de gestion Xlab pour les crédits
CNRS à la Délégation.
Mars 2009
Formation au logiciel de gestion (SIFAC) de l'UPS
Mars 2009
Culture générale et administrative à l'INSA
Mars 2009
Formation marché (hébergement, transports) CNRS
Avril 2009
La lettre administrative
Mai 2009
Formation Nabuco perfectionnement INSA Powerpoint
M. Mourafik (Tec)
Juin 2007
Juin 2007
Juin 2007
Mars 2008
Mai 2008
Mai 2009
Mai 2009
Mai 2009
C. Crouzet (Tec, 50%)
Janvier 2007
Mai 2007
Décembre 2007
Février 2008
Mai 2008
Septembre 2008
Novembre 2008
Février 2009
Mai 2009
8j
2 jours
3j
5 jours
5j
6
1
1
2
2
j
j
j
j
j
Sauveteur Secouriste du Travail
Utilisation d‘extincteurs sur feux réels
Notions générales de culture administrative
Le laser fonctionnement et domaine d'utilisation
(Bordeaux)
Préparation à l‘oral des concours
équipements
Labview
2 jours
1/2 j
2j
2j
ACMO
Sauveteur secouriste du travail
Power point
Recyclage des électriciens en habilitation électrique
équipements électroniques et/ou plate-formes
d‘essais (B1 B2 BR HO)
1/2
2j
5j
1/2
2j
1j
1/2
1/2
2
LPCNO - 13
1/2 j
2j
2j
2j
j
j
j
j
Equipe OPTO (chercheurs, enseignant-chercheurs, doctorants)+Techniciens
Juin 2008
Les risques liés à l‘utilisation des lasers
1j
Bilan des formations dispensées par les personnels de l’unité
L. Ressier :
Stages de formation continue (de 3 jours) sur l‘AFM et ses modes dérivés dispensés à des techniciens et ingénieurs
de laboratoires et entreprises.
J. Carrey :
Stage de formation continue Labview (de 3 jours) pour les BIATOS, chercheurs et enseignant-chercheurs
LPCNO - 14
ANNEXE 3: Hygiène et sécurité
Bilan des accidents et incidents survenus dans l’unité et mesures prises.
04/11/2008 Début d'incendie sur une paillasse du laboratoire de chimie suite à la manipulation de Tert butyl lithium,
produit très inflammable et sensible à l‘eau, le feu a été maîtrisé rapidement. Toute l‘équipe de chimie
expérimentale va être formée à la manipulation d‘extincteur au cours du 2° semestre de 2009, et des coups de
poing actionnant une alarme vont être installés sur chaque sorbonne.
Identification et analyse des risques spécifiques rencontrés dans l’unité.
Le document unique est mis à jour régulièrement, la dernière mise à jour date de juin 2008.
Dispositions mises en œuvre en fonction des risques. Priorités retenues.
Les dangers sont hiérarchisés et cotés sur le document unique mais aucun plan d‘action n‘a été rédigé. Des actions
sont menées régulièrement afin de réduire les risques.
Les installations électriques, les engins de levage, les générateurs de rayons X, les hottes et sorbonnes sont
contrôlés annuellement.
Le 11 juin 2008, les installations laser du département ont été contrôlées et une formation a été proposée le
lendemain sur l‘utilisation des lasers et la mise en sécurité des salles.
Fonctionnement des structures d'hygiène et de sécurité propres à l'unité (ACMO, comité spécial d'hygiène et de
sécurité, personne compétente en radioprotection…).
Le LPCNO compte 2 ACMOs (Catherine Crouzet et Katerina Soulantika), 2 membres du CHS (Catherine Crouzet et
Mohammed Mourafiq).
Le CHS se réunit 2 fois par an, les ACMOs et la PCR travaillent en étroite collaboration avec l‘ingénieur Hygiène et
sécurité de l‘INSA.
Le laboratoire compte 10 Sauveteurs Secouristes du Travail (Thomas Blon, Simon Cayez, Alain Coulomiers, Catherine
Crouzet, Fabien Delpech, Valérie Mariojouls, Mohammed Mourafiq, Laurence Ressier, Stéphanie Reyjal, Katerina
Soulantika)
Deux personnes du LPCNO ont suivi la formation Manipulation d‘extincteurs (Catherine Crouzet, Jean-Luc Gauffier) .
Deux personnes par étage sont chargées de l‘évacuation en cas d‘alarme incendie et tous les enseignants donnant
un cours, TD, TP deviennent chargés d‘intervention (Cathy Crouzet, Stéphanie Reyjal, Jean Luc Gauffier, Valérie
Mariojouls, Xavier Marie, Jérémie Grisolia).
Dispositions mises en oeuvre pour la formation des personnels et notamment des nouveaux entrants (y compris
stagiaires, doctorants…).
Les formations obligatoires (risque chimique, habilitation électrique, …) sont proposées tous les ans.
La formation des nouveaux entrants n‘est pas formalisée. Un document leur est remis à leur arrivée précisant les
règles de sécurité du département et la conduite à tenir en cas d‘alerte, puis une formation spécifique leur est
donné par leur responsable.
Problèmes de sécurité qui subsistent.
La Centrale de Traitement d‘Air (CTA) du laboratoire de chimie n‘est pas associée à une régulation de
température, ce qui entraîne des températures inférieures à 10°C en hiver et supérieures à 30°C en été (l‘éther
bout alors sans chauffe ballon). De plus, la CTA disjoncte régulièrement. Cette défaillance met le local en
dépression, qui conduit à un déséquilibre des flux d'air qui rendent les hottes et les sorbonnes inopérantes (constaté
lors du contrôle annuel). Certaines bouches de soufflage d'air sont mal positionnées et rendent les sorbonnes
inopérantes (constaté lors du contrôle annuel). Des solutions techniques sont en cours d‘étude pour résoudre
rapidement ce problème très important.
Suite au contrôle des installations laser, plusieurs améliorations ont été réalisées, mais il y a encore des
modifications à apporter aux différentes salles.
La Sécurité incendie : Lors de la réhabilitation du bâtiment les plans d‘évacuation devront être refaits et le
boîtier incendie repositionné. Certaines portes devront être changées afin de résister au feu.
Fait à Toulouse, le 3 juillet 2009
Catherine CROUZET et Katerina SOULANTIKA
ACMOs du LPCNO
LPCNO - 15
Research Groups
NCO
« Nanostructures and Organometallic Chemistry » Group
Equipe « Nanostructures et Chimie Organométallique »
Fabien Delpech (MdC UPS), Sébastien Lachaize (MdC INSA), Céline Nayral (MdC UPS),
Katerina Soulantica (CR CNRS), Guillaume Viau (Pr INSA)
Introduction
The group of experimental chemistry of the LPCNO (previously LNMO) was created in 2005 by
Bruno Chaudret as an extension of the ―Nanostructures and Organometallic Chemistry‖ group of the LCC,
partly thanks to a convention between CNRS and INSA. The reasons that prompted to implant
experimental chemistry in the LPCNO was, first, the strong collaborations existing between chemists of
the LCC and physicists of INSA and also the ambition to create a new laboratory gathering a
multidisciplinary culture in the field of nanosciences and nanotechnology. Dealing with the
―Nanostructures and Organometallic Chemistry‖ group, the aim was to form a group on two sites with
strong interactions thanks to a common seminar and sharing characterizations tools and know-how in the
field of nanoparticles chemistry. During the period 2006-2009 the NCO group has been reinforced in the
LPCNO by several nominations. In September 2006, S. Lachaize and G. Viau integrated the group as
INSA Assistant Professor and Professor, respectively. In 2008, K. Soulantica, previously research engineer
in the group, was successful in a position of Chargé de Recherche at the CNRS. In September 2009, a new
Assistant Professor of Paul Sabatier University will join the NCO group. This group is now an independent
and self consistent research group, well integrated in the LPCNO and linked through several collaborations
with the LCC.
Our main activity consists in the synthesis of metal, oxide and semiconducting nanoparticles (NPs) by
liquid phase processes (organometallic chemistry, polyol process or modified sol-gel methods) for
applications in the field of biology and medicine, on one hand, and for bottom up approaches of new
electronic devices and functional materials, on the other hand. The understanding of the nucleation and
growth steps in solution allows to synthesize monodispersed NPs in a broad size range and with a great
variety of shape. This control of morphology offers the possibility to tune the desired magnetic or optical
property of the particles. These ones can be used as models for the study of physical properties depending
on the particle size and shape. We develop also the syntheses of more complex objects: - metal oxide coreshell particles for protection toward oxidation; hybrid particles for the combination of optic and magnetic
properties or to address the problem of NPs connectivity; particles functionalized with organic molecules
in the perspective of a potential integration in new electronic devices.
Dealing with the biological applications the NCO group is involved in the transversal project ―NanoOncology‖ that started in 2006, the objectives of which are to design and to develop new therapeutic tools
in oncology to address the questions of (i) in vivo detection and (ii) hyperthermia treatment with new
biolabelled core/shell nanoparticles. The core should have optimized physical properties (i) luminescent
and (ii) magnetic , and the shell should be protective against deterioration, biocompatible and easily
functionalized with peptides. This is a multidisciplinary research project involving physicians, biologists,
chemists and physicists that sets up a competence network contributing to the local project of Canceropôle
in Toulouse. This project received the support of the scientific committee of the ―Pôle de compétitivité
Cancer-Bio-Santé‖.
1- Nanoparticles for oncology
PhD students and post-doctoral fellows: N. El Hawi (PhD defended in March 2009), A. Cornejo (Post-doc), L-M.
Lacroix (PhD defended in November 2008), A. Meffre (Post-doc), E. Lamouroux (ATER), A. Cros-Gagneux (PhD), D.
Matioszek (PhD).
Collaborations: A. Castel (LHFA, Fr), Y. Coppel (LCC, Fr), J-C. Faye (Inserm U563, Fr), E. Moyal (ICR, Fr), S.
Benderbous (Inserm U825, Fr), M. Martino (SPCMIB, Fr), D. Fourmy (INSERM U858, Fr), J-F. Guillemoles (IRDEP, Fr),
NCO-19
P. Lecante (CEMES, Fr), E. Snoeck (CEMES, Fr), C. Gatel (CEMES, Fr), M. Respaud (LPCNO, Fr), R. Poteau (LPCNO,
Fr), T. Amand (LPCNO, Fr), F. Dumestre (NanoMePS Company).
Funding: Région Midi-Pyrénées, InNaBioSanté Foundation, AVAMIP, Fond Social Européen, PPF NEMO, IRDEP, CNRS.
Monodispersed iron nanoparticles
In the framework of the Nano-Oncology project, the LPCNO physicists have modelled that magnetic
nanoparticles with a high magnetization should give the best results in hyperthermia treatment if the size
was optimized. Metallic iron was then a material of choice for that application and the range of size from 5
to 15nm was the one to focus our study on. No size and shape controls for iron(0) NPs were reported in the
literature. We have then developed the synthesis of pure iron nanoparticles (NPs) with a good control of
their mean size, their size dispersion and their shape during the last 3 years.
We have prepared ultra-small iron(0) germs of 1.5nm ( = 0.5nm) by reduction of the iron dimer
{Fe[N(SiMe3)2]2}2 (1) under a dihydrogen atmosphere, at 150°C, without any additional stabilizing
reactant[NCO-31]. Their crystal structure was the one of -Mn as measured by WAXS.
We investigated the kinetic of the precursor (1) decomposition/reduction in presence of primary amine
and carboxylic acid, by magnetometric measurements and Mössbauer spectroscopy, in addition to a
morphological study of the produced NPs by transmission electronic microscopy (TEM). We then
rationalized the NPs syntheses: first, we formed cubic NPs self-organized into organic lamellar
superstructures at high carboxylic acid concentrations whereas at low carboxylic acid concentrations, we
only formed spherical NPs since the growth environment was kept isotropic. Second, tuning the carboxylic
acid concentration within the ―cubic or spherical ranges‖ allowed us to finely tune the mean size of the
NPs, whatever their shape (Fig. 1)[NCO-38].
We proposed a new synthetic approach for iron NPs elaboration based on the ripening of ultra-small
iron(0) germs by different carboxylic acid and amine mixtures. Such a procedure had never been
documented before. The result was the possibility to prepare spherical NPs larger than with the previous
method.
As an interesting extension to the ripening strategy, we changed the carboxylic acid to an ammonium
chloride. This increased the reaction kinetics, enlarged the panel of spherical NPs samples available and
allowed the formation of large cubic NPs that were not entrapped all together into large micrometric
superstructures. We took profit of this last point in the study of one or few isolated nanocubes by magnetic
holography[NCO-30].
7.2
13.3
nm
nm
= 1.4
= 1.0
Fig.
1: TEM micrographs
20.8
23.6
26.1
31.6
41.8
90.4
nm
nm
nm
nm
nm
nm
= 2.7
2.9
= 7.2 according
= 8.9 to the =different
24.8
= 9.9
of
some NPs =samples
prepared
described
procedures.
Silica synthesis by sol-gel in non-alcoholic media
Biocompatible and easily functionalisable, silica
in THF
organic
appears as an interesting material to coat magnetic
shell
nanoparticles designed for hyperthermia treatment. In case
of oxidisable metallic magnetic core, the challenge is to
silica
core
form silica without inducing a surface oxidation which
would lead to a drastic loss of magnetization. We have
non alcoholic media
developed a new process to form silica by sol-gel in a
homogeneous non alcoholic medium compatible with the Fig. 2: TEM image and schematic representation of silica
nanoparticles with its organic shell
organometallic chemistry developed in the group.
Silica nanoparticles of adjustable size (between 18 and 174
nm) have been prepared and stabilised in organic non-alcoholic solvents (THF and DME), in a one-pot
NCO-20
process. This novel route is based on hydrolysis and condensation of tetraethoxysilane, using water as
reactant and different primary amines (butylamine, octylamine, dodecylamine, hexadecylamine) as
catalysts. The amine plays not only a catalyst role but is also implied, as well as the solvent, in the
stabilisation process and the size control of the particles. A detailed NMR study demonstrates a core-shell
structure in which the silica core is surrounded by a layer of alkylammonium ions together with
solvent[NCO-49].
200
150
-1
100
2
Aimantation (A.m .Kg )
We have adapted the silica formation process developed in organic non
protic medium for the coating of FeCo magnetic nanoparticles
(diameter 12 nm) prepared and stabilised themselves in non protic
media by the organometallic way. Thanks to the compatibility of the
synthesis media and to a very fine control of the ratio water/metal,
FeCo NPs have been embedded into silica with no loss of their initial
saturation magnetization (Ms = 150 emu/g before and after coating),
which is an unprecedented result. They can be trapped in a silica
matrix or dispersed in small silica grains (40-100 nm)[NCO Patent 2007].
50
FeCo
FeCo@SiO2
0
-50
-100
-150
-200
-6
-4
-2
0
2
4
6
Champ appliqué (T)
Fig. 3: Magnetization curves of FeCo
NPs before and after coating
Organometallic synthesis of semiconductor nanocrystals
InP is one of the most promising material due to
pertinent emission colour range and low toxicity, in contrast
to the common CdS or CdSe NPs. However, preparation of
high quality (in terms of emission efficiency and stability)
InP nanocrystals is highly challenging, and is closely related
to the surface states control.
100 nm
We have fully characterized the surface chemistry of the
InP QDs prepared via organometallic approach. We have
Figure 4: TEM image of InP/ZnS QDs (left) and
fluorescence microscopy image of internalized
identified side-reactions of organic stabilizers that might be
QDs in HEK cells (right).
responsible from inherent growth difficulties and surface
luminescence quenching encountered. The latter problem can be partially addressed when shelling with
larger gap semiconductors, and we have prepared highly luminescent water soluble InP/ZnS nanocrystals
of 3.5 nm. Time resolved luminescence studies performed in collaboration with the LPCNO OPTO group
clearly showed the absence of variation of the decay time with temperature and illustrated low defect
concentration and strong confinement. These particles are stable in air over a long period of time (more
than 6 months). These QDs are currently evaluated as bio-labels for functionalisation in the context of
cancer detection.
2- Nanoparticles as building blocks for new electronic devices and functional materials
Students and post-doctoral fellows: F.Wetz (Post_doc), J.Maynadié (Post-doc), C.Garcia (Post-doc), V.Guieu (Postdoc), M. Ibrahim (PhD), N.Liakakos (M2)
Collaborations: F. Ott (LLB, CEA Saclay), J.-Y. Piquemal, P. Lang (ITODYS), N. Jouini, A.A. Stachkevitch (LPMTM,
Paris 13), E. Snoeck, C. Gatel (CEMES), U. Banin (University of Jerusalem), J. Spatz (Max Planck Institute,
Stuttgart), M. Mauzac (IMRCP), P. Seneor (UMP Thales-CNRS), V. Petkov (University of Michigan), M. Moge
(Universidad la Rioja)
Funding: European STREP project : “Self Assembly of Shape Controlled Colloidal Nanocrystals” Acronym SA-NANO
Project no. STRP 013698; Regional project of Midi-Pyrénées “Organisation de nanoparticules magnétiques”; ANR,
MAGAFIL project (Program P-Nano); ANR Blanc, BATMAG project.
The chemical synthesis of nanoparticles presents the advantages of simplicity and low cost with
respect to physical approaches. Either for 3D nanostructured materials or for electronic devices based on a
2D particles assembly the method that consists in synthesizing the particles first and by organizing them
subsequently presents the advantage to gain control over the final material parameters by tailoring
independently the particles shape and their organization.
In this context during the last period we focused on: - the synthesis of magnetic anisotropic particles
well suited for a bottom up approach of hard magnetic materials; - the functionnalisation of nanoparticles
for their integration in electronic devices; - the heterogeneous growth on substrates.
NCO-21
2.1 Anisotropic and hybrid nanoparticles
2.1.1 Growth of anisotropic magnetic nanoparticles : rods, wires and multipods
We developed 2 methods for the synthesis of magnetic nanowires and rods in liquid phase. The first
method is based on an organo-metallic route, the second one is based on a reduction in liquid polyol.
Cobalt nanorods were obtained by a variation of a method developed by F. Dumestre et al. [Angew.
Chem. Int. Ed. 2003, 42, 5213]. This modified method yielded large 3D super-lattices of Co nanorods
organized side by side along their long axis[NCO-17]. Modification of the ligands ratios influences the
nucleation and growth steps, giving rise to cobalt multipods. In the framework of a thesis in co-direction
with the laboratory ―Interactions Moléculaires et Réactivité Chimique et Photochimique‖ we have as an
objective the fabrication of artificial muscles combining cobalt nanoparticles with liquid crystalline
polymers and elastomers. We are currently studying the response of the composite material to an externally
applied magnetic field.
We developed also the synthesis of cobalt and cobalt-nickel rods and wires by reduction cobalt and
nickel carboxylates in basic solution of 1,2 propanediol and 1,2 butanediol. We showed that, by acting
upon the basicity of the medium, the nature of the carboxylates and the ramping temperature, it was
possible to synthesize monodisperse rods and wires with a mean diameter in the range 5-30 nm and a
length in the range 100-250 nm[NCO-37]. We studied the influence of the experimental parameters on the
particle morphology and we proposed a mechanism based on a kinetic control of the particle growth[NCO-47].
We described also the
200 nm
200 nm
50 nm
formation
of
cobalt
tetrapods made up of four
rods with the hexagonal
close-packed structure that
have grown from a seed
with the face centred cubic
(b)
(a)
(c)
structure.
Fig. 5 : TEM images of magnetic particles prepared by the polyol process
The rods and wires
(a) Co nanodumbbells; (b) CoNi nanowires; (c) CoNi tetrapod
prepared by both methods
are well crystallized with a hexagonal close packed (hcp) structure with the crystallographic c-axis along
the long axis of the particle. These and exhibit very high coercivity (up to 10 kOe) related to the high shape
anisotropy and to the high magnetocrystalline anisotropy of the hcp phase. Moreover, very high remanent
magnetizations were recorded on aligned cobalt rod assemblies that make these rods interesting building
blocks for ultra high magnetic density recording applications and permanent magnets[NCO-26, NCO-45, NCO-50].
At the moment these methods of elaboration are unique and it is important to emphasize their
complementarity: controlled surface state and self-organisation in case of cobalt rods prepared by the
organometallic route, tuneable diameter and resistance to oxidation in case of cobalt rods prepared by the
polyol process.
2.1.2 Hybrid nanoparticles
An emerging direction of increasing importance in the research on nanomaterials is the transition from
simple nanocrystals to multifunctional nanocrystals. These nano-objects do not only possess the multiple
properties of their components but may also exhibit new properties stemming from the interactions
between the components. A special category of multifunctional materials contains two distinct domains of
different materials joined to one another and forming
one nanocrystal. In the framework of the European
STREP project SA-NANO the afore-mentioned
―organometallic‖ cobalt nanorods have been used as
seeds for the heterogeneous growth of gold on them.
By a judicious choice of the gold precursor, in mild
conditions and by controlling the surface chemistry
we can have access either to gold decorated cobalt Figure 6: TEM image of hybrid nanoparticles (scale bars 100 nm)
nanorods or gold tipped nanorods (Fig. 6).
Interestingly gold is found to grow epitaxially on the lateral sides of Co nanorods, while its growth on the
NCO-22
tips happens in a constrained way[NCO-16]. In the framework of the same project, in collaboration with U.
Banin we have used CdSe nanorods as seeds for cobalt growth. Spherical Co tips but also Co nanorods
have been grown on CdSe (Fig. 6) giving rise to the first ferromagnetic hybrid ―magnetic metalsemiconductor‖ nanocrystals[NCO-39].
We described also the formation of cobalt-nickel nano-dumbbells in liquid polyol. These particles are
made up of a central hcp cobalt rod and two ending nickel platelets with the fcc structure that have grown
in epitaxy. This particular shape is obtained when the conditions are fulfilled to precipitate mixture of a
cobalt alkoxyde and a nickel hydroxyacetate as intermediate phase before the metals reduction[NCO-23].
2.2 Functionnalization and bidimensional organizations – Toward integration in electronic
devices
2.2.1 Connectivity of CoAu hybrid particles
The organisation of gold tipped cobalt nanorods on flat
substrates is the objective of collaboration between our group
and the group of J. Spatz (Max Planck Institute, Stuttgart). We
have managed to connect the gold tips of the nanorods to the
gold nanoparticles which are perfectly organized on flat
substrates. The patterned substrates are functionalized with a
dithiol which is attached to the gold particles by one of the
functional groups, while the second group is let free to be
connected to the incoming gold tipped Co nanorods (Fig. 7).
The next step is to use a magnetic field in order to align the
nanorods on the substrates in collaboration with the group
« NanoMagnetism (NM) » of the LPCNO.
200 nm
Fig. 7: SEM image of Co-Au nanorods attached by
the tips to the Au NPs of a decorated substrate by
a dithiol. Inset: TEM image of a Co-Au nanorod
2.2.2 Interaction of metal NPs with oxide surfaces – Elaboration of variable capacitors
In collaboration with UMP Thales-CNRS-Université Paris 11 and ITODYS (Université Paris 7Diderot) sputtering and colloidal chemistry were combined to prepare [Co / Al 2O3 // Ru nanoparticles //
Al2O3 / Co] junctions, for application as variable capacitors (Fig. 8). These devices rely on Coulomb
blockade in the bi-dimensional assembly of nanoparticles. The Ru
Si
nanoparticles were prepared by the polyol process and were grafted
Co
on silanised alumina tunnel barriers. AC measurements showed a
Al2O3
significant capacitance variation as a function of applied DC voltage
Co
Ru
with the maximum of relative variation ( C/C) at 1.1 V and a C/C
Al2O3
value proportional to the particle density embedded in the dielectric
layer in good agreement with the theoretical model. This approach is
original because only very few studies deal with the use of metal
10 nm
nanoparticles prepared by chemistry for the elaboration of solid state
devices. We showed that combined to the physical elaboration Fig. 8: Cross section of a variable capacitor
process of ultrathin tunnel barriers, chemistry allows to gain control integrating a Ru NPs monolayer
over the devices parameters by tailoring the 2D assembly[NCO-24].
We developed also the synthesis of 1.7 nm size Pt particles and their functionalization with mercaptocarboxylic acids. These bifunctionnal molecules allowed the NPs anchoring on alumina tunnel barrier[NCO33]
. Besides the grafting of particles we studied the effect of NPs functionalization on their spectroscopic
and structural properties. In particular, by high energy XRD showed that the structure of 2 nm size Ru
particles is strongly modified by functionnalzation by thiols[NCO-27].
2.2.3 Gold particles for nanoxerography
In collaboration with the group Nanotech of the LPCNO we developed the synthesis of gold
nanoparticles well suited for nanoxerography experiments. Colloidal solution in hexane of 2 nm gold NPs
coated with long chain quaternary ammonium were prepared and 2D nanoparticle monolayers were
directly assembled by simple immersion onto charged patterns written by AFM on PMMA thin films[NCO48]
.
NCO-23
2.3 Heterogeneous growth on substrates
In this transversal project in collaboration with the NM group of the LPCNO we develop new kinds of
anisotropic and hybrid nanostructured architectures made up of nanocrystals monolithically grown on a
substrate. For example, the direct growth of cobalt nano-rods on substrates can overcome the problems
related to the functionalisation of already formed nano-rods and their integration a posteriori in
predetermined areas of substrates. An additional advantage could be simplification of the electrical
connection. The general strategy is the wet chemistry heterogeneous nucleation and growth of nano-objects
on predefined areas on flat substrate. It permits to envisage a monolithic integration of a variety of
materials in flat components of future devices, while assuring their positional and orientational order on the
surface of the substrate. Two axes are followed in parallel. Both axes include two steps: (i) the definition of
the growth points on the substrate and (ii) the growth of final nano-objects by wet chemistry.
a)
The nano-objects are grown using as seeds nanoparticles deposited on substrates. These substrates
are characterized by the highly organized patterns of nanoparticles of various materials. This axis is
followed in the framework of a collaboration with the group of J. Spatz (Max Planck Institute, Stuttgart).
b)
The nano-objects are grown using as seeds nanoparticles epitaxially grown on substrates by
physical vapour deposition (either continuous 2D layers or 3D islands deposited on substrates). This axis
is followed in the framework of the ANR BATMAG (2007-2010) in collaboration E. Snoeck (CEMES).
Some very interesting results are the object of a valorisation project of the LPCNO. A patent is currently
under preparation with the financial support of AVAMIP.
3- Model nanoparticles for ecotoxicology and astrophysics
Our expertise in the field of nanoparticles and colloidal solutions led us to develop collaborations with
groups working in the fields of earth sciences, environment and process engineering.
3.1 – Nanoparticles as model for astrophysics
Students and post-doctoral fellows: N. Boudet (PhD defended in march 2005), A. Coupeaud (Post-doc)
Collaborations: C. Mény (CESR, Fr), H. Mutschke (Jena University, Ge), A. Jones (IAS, Fr)
Funding: PCMI program, ANR, PPF «Molecules et Grains : du Laboratoire à l'Univers »
This work, coupling observational data, theoretical, modelling and experimental studies, takes place in the
context of the comprehension of interstellar dust cycle (star formation) and the preparation of the analysis
of the observational data which will be soon accessible by spatial missions Herschel and Planck.
Observations realised in different sites of interstellar medium have evidenced new optical properties which
cannot be reproduced by standard astrophysical grains models. Confirming the observations, FIR
emissivity for amorphous silicates and simple silica measured in our studies appears to depend on the
temperature and the frequency. We measured, for different samples (silica particles (500nm), silica fumed,
and micronic grains of MgSiO3, Mg2SiO4, Mg1.5SiO3.5), a deep variation of optical properties with
temperature, which is compatible, on one hand with astrophysical data, and on the other hand with the
physical model developed at CESR. We showed that physisorbed water in surface of silicate and silica
samples is not responsible for the observed temperature and frequency dependence whereas OH groups
could be at the origin of the submillimeter properties of the materials[NCO-21].
3.2 – Water depollution
Students involved: F. Astié (Master), Y. Liu (PhD), M. Tourbin (Post-doc)
Collaborations: P. Guiraud (LISBP, Fr)
Funding: Région Midi-Pyrénées, CNRS, INSA.
Pr. Guiraud has initiated this project that aim at preventing the contamination of industrial wastewater
by nanoparticles. It is based on the observation that classical treatment units are built to efficiently filter
micrometric particles. So forcing the nanoparticles to agglomerate into stable and micrometric aggregates
during a preliminary step should allow a quite simple update of what is already in use. The researches then
focused on the agglomeration mechanism and kinetics in presence of mineral salts and/or surfactants
NCO-24
(coagulation-flocculation), or in the presence of air bubbles (flotation). Physicochemical studies on
aqueous SiO2 colloids have established the concentration range of aluminium salt and cetylammonium
bromide that gave the best efficiency. A small capacity treatment unit coupling both the coagulation and
the flotation methods is under construction.
NCO-25
NM
« Nanomagnetism » group
Equipe « Nanomagnétisme »
Thomas Blon (MdC INSA), Julian Carrey (MdC INSA), Marc Respaud (Pr INSA)
Introduction.
From a general point of view, in the nanotechnology-based world which is predicted to emerge,
magnetic nanostructures and among them magnetic nanoparticles (NPs) may play a major role. In the field
of bio-nanotechnologies, they are already used as contrast agents in magnetic resonance imaging and for
magnetic separation, but are also promising materials for magnetic hyperthermia applications or drug
targeting. With respect to magnetic recording, the increase of storage density requires the optimization of
high-anisotropy nanomaterials. Finally, the use of magnetic NPs with well-controlled properties may open
new opportunities in spintronics. Fundamental studies are still required, if one aims to control the
magnetization, anisotropy, the magnetization process, and transport properties. This is particularly crucial
in complex nano-object who aim to combine at least two properties (magnetic / luminescence, magnetic /
catalytic, …) like nano-alloys, core shell or heterodimers systems (either inorganic or organic).
Our group is composed of three experimentalists, specialist of nanomagnetism and spintronics,
covering complementary fields, thin film growth and electronic microscopy, magnetisation studies (static
and dynamic properties, ferromagnetic resonance, Mössbauer spectroscopy), and magnetotransport
properties. A large part of our activity is done in very close collaboration with the chemists who develop
the synthesis in mild conditions of NPs, either at the LCC or LPCNO. In the past years, we have
demonstrated that magnetic measurements are very powerful techniques, and sometimes the unique ones,
which allow a fine characterisation of the size distributions, the surface state, the presence and
identification of residues of precursors, that cannot be detected by microscopy or conventional
spectroscopy studies. Used as feedback, these information are crucial to make the good choice in terms of
precursors, ligands, synthesis conditions (T°, atmosphere,…). Since now more than 15 years, we develop
with these chemists and the physicians who do the transmission electronic microscopy studies and the band
structure calculations a unique and common knowledge on material science in magnetic nanometric objects
at the interface between chemistry and physics.
Once the synthesis conditions are refined to get a well defined system of NPs, deeper magnetic
studies and analysis are carried out to extract the magnetic properties in term of magnetic parameters
(saturation magnetization, anisotropy, …) and magnetization behaviour (switching mechanisms, role of
interactions, static and dynamic properties)[NM-15,22,23]. This enables us to investigate the exact role of size
reduction, shape, composition and chemical distribution in nano-alloys, or heterodimers, with the final aim
to get some idea on the way to tune them[NM-8,12,25,28]. In a further step, others magnetic studies like
magnetotransport or hyperthermia measurements are done, the quality of the systems and the adapted
experimental developments giving rise to original results[NM-14,18,19,30]. Our implication and close
collaboration with the chemists also manifests through the development of the ‗hybrid synthesis‘, which
combines the advantage of chemical and physical growth methods, for a monolithic integration (with
epitaxial growth by chemical synthesis) of nano-objects in nanodevices. Some of these aspects are then
illustrated in the following parts.
1 – Material science and magnetic analysis.
A large part of our activity is devoted to materials science on nanoscaled systems. On one hand, we
participate to the optimisation and understanding of the chemical synthesis of nano-objects by using
NM - 27
magnetic studies (magnetisation, Mössbauer spectroscopy). On another hand, we performed more
advanced magnetic studies and analysis which allow the highlight the unique properties of these nanoobjects.
Magnetic studies for NPs growth optimisation.
Different systems have been characterised, consisting in monometallic, or bimetallic NPs with different
chemical distributions (alloys, core-shell, or heterodimers). One of the most important studies has been
devoted to the synthesis of well controlled monometallic Fe nanoparticles. Fe is a key material in the field
of magnetic material, and the control of the magnetization necessitates a fine control of the surface
chemistry. Moreover, the control of size or shape is necessary to adapt the properties to the targeted
applications. In this context, since the classical methods of characterisations based on RMN spectroscopy
are avoided, we demonstrate by combining magnetization measurements and Mössbauer spectroscopy, we
can follow the kinetics of the precursor decomposition and the NP growth as a function of the synthesis
parameters (acid/amine ligands, temperature). This has allowed either a fine control of the surface state and
of the size and shape. An original magnetic study on Fe nanocube synthesised using these optimised
methods is shown below[NM-23,27].
Simulation and analysis of the magnetic properties.
Magnetism 3d/4d systems: The modulation of the anisotropy of NPs, especially towards hard materials
implies the synthesis of nano-alloys, which combines one 3d metal with a high saturation magnetization
and another polarisable material with a high spin orbit coupling. We performed an experimental exhaustive
study aiming at measuring the anisotropy, spin and orbital magnetism in 2nm CoRh bimetallic NPs in
collaboration
with
C. Amiens (LCC - Toulouse). Our collaborations with G. Pastor (Univ. Kassel) and J.L. Dorantes Davila
(Univ. San Luis Potossi - Mexico) who made some band structure calculations including spin orbit effects
on NPs of similar sizes (up to 500 atoms) have permit to evidence the kea role of (i) chemical segregation,
(ii) induced magnetism on 4d atoms, on the anisotropy and magnetic moment. We get for the first time a
good agreement of the theoretical estimates and experimental results, which enable us to conclude that the
anisotropy optimisation is much more complex in NP than in bulk materials, the latter being not the more
favourable here.
Fig. 1 : a) TEM image of one isolated
nanocube, (b) phase image corresponding to
the magnetic flux lines, (c) vector map of
the in-plane components of the magnetic
induction
and
(d)
corresponding
micromagnetic simulation of the in-plane
induction.
Micromagnetic simulations : E. Snoeck and C. Gatel recently
develop the magnetic imaging of nano-objects using electron
holography in transmission electronic microscopy in CEMESCNRS (Toulouse). Co nanorods and Fe nanocubes grown up by
chemical methods are systems of choice to investigate the
magnetic configuration and the exact role of size and shape.
Compares to current studies, these free standing systems behaves
as really free systems without the influence of a substrate. Figure 1
shows one of the most original result with the observation of a
vortex state in a single 30 nm iron nanocubes. Our group
performed the micromagnetic simulations using the public code
OOMMF to simulate the magnetic configuration (vortex), which
allow us to determine the nanocube properties (saturation
magnetization, anisotropy, vortex core size). Future measurements
on smaller iron nanocubes and spheres are planned to get the
critical size at which the monodomain, vortex transition occurs,
and the exact role of shape…[NM-22]
Contracts and grants: Projet région „Nano-oncologie‟ (06-08), Projet région „Organisation de nanoparticules magnétiques‟ (06-08),
Projet INTERREG IIIA Franco-Espagnol (2006-2008) „Nanoret‟, Projet INTERREG IVA Franco-Espagnol (2009-2011) „Metnano‟.
NM - 28
.
Scientific collaborations: Group of „Chimie expérimentale‟ LPCNO. A. Falqui Université de Cagliari-Italie, G. Pastor, Université de
Kassel (Allemagne), J. L. Dorantes Davila Université San Luis Potosa – Mexico (Mexique). C. Amiens, M. Kahn, B. Chaudret,
LCC-CNRS (Toulouse), M-J. Casanove, P. Lecante, C. Gatel, E. Snoeck, CEMES- CNRS (Toulouse). L. Manna, Lecce – Italie.
PhD and post-doctoral students: R. Tan (11-04 – 01-08), L.M. Lacroix (11-05 -10-08).
2- Experimental developments.
During the past four years, the group made several experimental developments which allow us to get
very original results. Two of them are described in more details below. We also improved our
magnetotransport experiment to measure very high impedance which allowed us to make the first
experiments on NPs superlattices (see part 4).
Set-up for hyperthermia measurements.
In a medical treatment using hyperthermia, it is generally assumed that the product µ0H.f should
not exceed 6x106 Hz.mT [R. Hergt et al., J. Magn. Magn. Mater. 311, 187 (2007)]. Using a frequency f around
100-300 kHz (imposed by biological constraints) leads to an applied magnetic field µ0H of the order of 2060 mT. The scarce experiments of hyperthermia as a function of f reported in the literature were done using
homemade power resonators and coils. In general, the alternative µ0H is in many cases produced by a coil
connected to a high power rf generator, the set-up working at a unique f. However, the study of the
frequency dependence of the hyperthermia is necessary for deeper insights into this phenomenon.
We developed a frequency-adjustable hyperthermia setup, using an original approach which
combines homemade elements such like a high-frequency electromagnet of Litz wire and of a resonating
transformer. The final optimized setup requires a very low power to produce the alternative magnetic field
up to 30 mT, with adjustable f in the range 2-100 kHz. To improve the sensitivity of the setup, a
differential temperature measurement is used, leading to sensitivity better than 1.5 mW at 100 kHz[NM-21].
This unique setup has been particularly relevant, allowing the observation and analysis of the frequencydependence of the coercive field of magnetic NPs from hyperthermia measurements. (see part 5).
‘Hybrid’ synthesis and nano-object integration.
The optimisation and refinement of the chemical synthesis procedures give well defined NPs with
original properties. However, efficient routes are desired to integrate them into nanostrutures to get new
electronic components or new nanostructures that will really use the unique properties of the NPs.
In that context, with the group of ‗Chimie expérimentale‖, we are developing the ‗hybrid
synthesis‘ which combines physical (sputtering,
evaporation) and chemical techniques, for the design of
new nano-materials, or for a proper integration of NPs
grown up using a chemical approach. We designed and
purchased an adapted equipment which consists in an
UHV sputtering-evaporation deposition system coupled
with a glove box (see figure 2). This equipment will be
installed in LPCNO in September 09. It will allow
transferring samples under controlled atmosphere from
physical to chemical synthesis and vice versa. Integration
of the nano-objects will be done in two ways:
- direct epitaxial growth of the NPs using the chemical
Fig 2 : Scheme of the UHV sputtering-evaporation
system.
methods developed in LPCNO on mastered substrates.
- deposition of NPs by dip, spin coating or drop casting of colloidal solutions.
Others surface treatments like using the UHV chambers are also available (plasma etching, annealing,
controlled oxidation, etc), as well as photolithographic polymers deposit (inside the glove-box). First
realizations of based on ‗hybrid synthesis are described in the next part.
NM - 29
Contracts and grants: AO3 „Nano-oncologie‟ (07-08), Projet région „Nano-oncologie‟ (06-08), Projet région „Organisation de
nanoparticules magnétiques‟ (06-08), ANR Batmag (08-10), Equipement Mi-lourd CNRS (08).
Scientific collaborations: K. Soulantika, group of „Chimie expérimentale‟ LPCNO.
PhD and post-doctoral students: L.M. Lacroix (Tesis, 05-08), B. Mehdaoui (PostDoc, 12-08,11-09)
3 - Hybrid nanostructures.
These activities of the Nanomagnetism team are mainly based on the closed relationship with the
experimental chemists of the LPCNO. Indeed, this team possesses a strong experience in the synthesis of
nano-structures in colloidal solutions. Among them, the magnetic ones are of first interest and particularly
cobalt nanorods because of the small dispersion size, crystallinity, absence of oxidation, important
saturation magnetization and anisotropy. The natural next step in this field is the integration of such nanoobjects in devices. Moreover, they demonstrate the possibility to grow up epitaxially another a NP on a NP
leading to heterodimers[NM-12]. Therefore we proposed to develop the hybrid synthesis way by combining
physical and chemical routes.
The principle is to deposit thin films (either 3D islands or continuous 2D films) on substrates by
physical vapor deposition methods and then to introduce them in the Schlenck containing the solvent,
metal precursors and ligands for the chemical growth. Actually we prepare substrates by the deposition of
metal films on monocrystalline substrates using the UHV sputtering deposition system located in CEMESCNRS in collaboration with E. Snoeck. The deposition parameters have been optimized to obtain epitaxial
growth of the metallic layers with a well define direction growth. We demonstrate the efficiency of the
process, by forming a regular dense network of monocrystalline Co nanorods epitaxially grown
perpendicular to the surface (see scheme in figure 3). The first magnetic measurements display an
important perpendicular magnetic anisotropy of the sample.
French patent on the method and object will be written. This first realization open new opportunities
for the monolithic integration of small nano-objects that cannot be done using lithographic based methods.
The goal now is to expend this methods to others kinds of materials, and nano-objetcs. Is it possible to
control the size and shape? In this heavy work, our task consists in developing well adapted substrates. For
instance, we prepare the sputtering-growth of 3D metal islands on oxide substrates and barriers (see figure
4). The aim is to provide substrates for a controlled growth of Co nanorods in terms of locations and
densities (see figure 5).
Fig. 3: scheme of the perpendicular
growth of Co nanorods on a two
dimensional epitaxial metallic film.
Fig. 4: plane view of Co islands
grown on MgO(001) by UHV
sputtering.
Fig. 5: scheme of the expected nanorod
growth on metallic islands prepared by
PVD deposition method.
Contracts and grants: Projet région Midi-Pyrénées „Organisation de nanoparticules magnétiques‟ (06-08), ANR Batmag (08-10),
Equipement Mi-lourd CNRS (08). PhD tesis cofounded by région Midi-Pyrénées and PRES of Toulouse. AVAMIP (08), patent on
„hybrid synthesis‟.
Scientific collaborations: K. Soulantika, group of „Chimie expérimentale‟ LPCNO, B. Chaudret, LCC-CNRS Toulouse, E. Snoeck,
CEMES-CNRS Toulouse.
PhD and post-doctoral students: O. Benamara (Tesis, 09-07 – 09-10).
4 – Magnetotransport
During these four years, we have developed the measurements of electronic transport in NPs
network. The more important results are the transport and magnetoresistance (MR) measurements of
chemically synthesized magnetic artificial solids consisting of millimeter-size superlattices of CoFe (NPs)
NM - 30
separated by a thin organic insulating layer. Such large self organised system can be connected using
classical methods (Au wires and silver paint) without the requirement of heavy lithographic process. We
were the first group who investigated such kind of system. The electrical measurements highlight the
richness of the interaction between transport and magnetic field in three-dimensional networks of magnetic
NPs, the role of the disorder (structural, size dispersion, …), especially in the Coulomb blockade regime:
- Resistance temperature characteristics follow R=R0 exp(T0 /T1/2), as generally observed in NP
arrays displaying charge or structural disorder.
- Low-temperature current-voltage characteristics scale according to I [(V−VT)/VT] with
ranging from 3.5 to 5.2. For a sample with a very large size distribution of NPs, a reduced exponent down
to = 1 is found, the origin of which remains unclear.
- A large high-field MR displaying a strong voltage dependence and a scaling versus the magnetic
field/temperature ratio is observed in a limited temperature range (1.8–10 K). The most likely
interpretation is related to the presence of paramagnetic centers at the surface or between the NPs.
- Below 1.8 K, concomitantly to the collapse of
this high-field MR, a low field inverse tunneling MR
grows up with a moderate amplitude not exceeding 1%.
- Below a critical temperature of 1.8 K, abrupt
and hysteretic transitions between two well-defined
conduction modes - a Coulomb blockade regime and a
conductive regime- can be triggered by the temperature,
electric, and magnetic fields (see figure 6). Huge
resistance transitions and MR with amplitude as high as
a factor 30 have been observed in this regime. We
propose that these transport features may be related to
collective effects in the Coulomb blockade regime
resulting from the strong capacitive coupling between
NPs. They may correspond to the soliton avalanches
predicted by Sverdlov et al. [Phys. Rev. B 64, 041302, Fig. 6 : I(V) curves of a FeCo NPs superlattice, with
2001] or could also be interpreted as a true phase abrupt transitions between two conduction regimes.
transition between a Coulomb glass phase to a liquid phase of electrons. The origin of the coupling
between magnetic field and transport in this regime is still an open question. These pioneering works will
be pursued in order to identify the exact contribution of collective effects, by changing the systems of NPs
(size, composition, ligands). New collaborations are also developed with UMR Thales-CNRS and H. Van
der Zant from Delft University, in order to perform measurements on single NPs to get the individual
behaviour.
Contracts and grants: Projet région Midi-Pyrénées „Organisation de nanoparticules magnétiques‟ (06-08).
Scientific collaborations: B. Chaudret, LCC-CNRS Toulouse, P. Renaud, Freescale Toulouse.
PhD and post-doctoral students: R. Tan (Tesis, 11-04 – 01-08).
5 – Nano-oncology.
Among the numerous potential applications of magnetic NPs in nanomedecine, one of the most
important one is the hyperthermia for cancer therapy. Developed with the ‗Chimie expérimentale‘ group,
the magnetic part of the nano-oncology project aims at developing new magnetic NPs with high
hyperthermia efficiency. Our group is involved in the magnetic studies, the hyperthermia measurements
and their analysis, which allow a feed back to the ‗Chimie expérimentale‘ group for the optimization of the
NPs (size, composition). Some hyperthermia measurements are performed in collaboration with M.
Goujeon, CIRIMAT, Toulouse, who develop a single-frequency setup with high magnetic field up to 100
mT (higher than the 30 mT available on our adjustable frequency set-up).
NM - 31
Maximum heating power is expected as NPs behave as Stoner and Wohlfarth NPs (single-domain)
and display a high saturation magnetization. NPs behaving either in the superparamagnetic (SPM) or
ferromagnetic (FM) regimes can lead to some energetic
dissipation, the latter being more efficient if the
saturation field is below the applied alternative
magnetic field.
Experimental measurements have been done
using several systems of NPs either in the FM or SPM
regimes. Our main result has been obtained on
amorphous FeCo 15 nm NPs, which displays a soft
anisotropy and a high magnetization. We observed for
the first time clear features of the expected field and
frequency dependencies of the losses per cycle for NPs
in the FM regime: heating power displays a sharp
increase at the coercive field and a plateau above
Fig. 7 : Losses of FeCo nanoparticles as a function of
saturation (see Figure) in good agreement with the magnetic field measured at various frequency.
theoretical predictions in the framework of the StonerWohlfarth model. Moreover, the losses (1.5 mJ/g) compare to the highest of the literature[NM-29]. Record
values up to 5 mJ/g were recently measured on 11 nm iron nanocubes.
Contracts and grants: AO3 „Nano-oncologie‟ (07-08), Projet région „Nano-oncologie‟ (06-08).
Scientific collaborations: F. Delpech, C. Nayral, S. Lachaize, group of „Chimie expérimentale‟ LPCNO, B. Chaudret, LCC-CNRS
Toulouse, M. Goujeon, CIRIMAT, Toulouse, S. Benderbous, Laboratoire de Pharmacologie Clinique, Toulouse.
PhD and post-doctoral students: L.M. Lacroix (Tesis, 05-08), B. Mehdaoui (PostDoc, 12-08,11-09)
NM - 32
NTC
« Nanotech » group
Equipe « Nanotech »
Benoît Viallet (MdC INSA), Jean-Luc Gauffier (MdC INSA)
Jérémie Grisolia (MdC INSA), Laurence Ressier (MdC INSA)
Introduction
Nanotech is a small group of four permanent physicist lecturers-researchers which develops, at the
interface between Physics, Chemistry & Nanotechnologies, reliable and low-cost techniques for both the
directed assembly of nano-objects onto specific areas of substrates and their electrical nano-addressing. Its
final goal is to study the original physical properties of these nano-objects and to exploit them in functional
nano-devices. Two kinds of nano-objects are used: colloidal nanoparticles elaborated by chemical
synthesis and silicon nanocrystals fabricated by ion implantation at ultra-low energy and thermal
annealings. Another activity of the Nanotech group concerns nanocharacterizations by atomic force
microscopy (AFM) and its derived modes (EFM, KFM, SCM, nanolithography…).
1- Colloidal nanoparticles (LR, BV, JG)
Chemical synthesis is an efficient and low-cost way to elaborate solution of nanoparticles whose size,
shape, composition and surface functionalization are finely tuned.
Topic n°1: Directed assembly on surfaces
We developed two original generic methods to direct the assembly of these colloidal nanoparticles onto
specific micro or nanometric areas of substrates: convective/capillary deposition on chemically patterned
substrates and AFM nanoxerography.
a. Convective/capillary deposition on chemically patterned substrates
Convective/capillary deposition is an efficient way to form compact arrays of nanoparticles on large
areas (several cm2) from a drop of colloid suspension dragged onto a substrate at a fixed speed. We
demonstrated that this technique applied on silicon substrates chemically patterned in
hydrophilic/hydrophobic areas is an efficient way to direct colloid assembly[NTC-30]. This chemical contrast
was performed by combining chemical vapor deposition (CVD) of octadecyltrimethoxisilane (OTMS) with
nano-imprint lithography or AFM oxidation nanolithography (Fig. 1)[NTC-15,17,19].
(a)
(b)
Figure 1. Directed assembly of colloids by combining convective/capillary deposition and AFM oxidation nanolithography: (a)
Principle, (b) AFM images of the directed assembly of 100 nm latex nanoparticles on a 10 µm hydrophilic SiOx pattern
Nanotech - 33
b. AFM nanoxerography
AFM nanoxerography is the second original method developed to direct nanoparticle assembly on
surfaces. This process utilizes charged patterns obtained by AFM charge writing into electret thin films to
generate strong electric fields above the surface which act, via electrostatic interactions, as self-assembly
targets for any kinds of charged or polarisable colloids.
We demonstrated that AFM nanoxerography is a simple, fast, versatile and reliable method to control
the directed mono or bilayered-assembly of nanoparticles as small as 2 nm from solution onto any kinds of
charged patterns written by AFM into poly(methylmethacrylate) (PMMA) thin films under ambient
conditions (Fig. 2). We showed that both electrophoretic and dielectrophoretic forces are responsible for
these directed assemblies[NTC-27,31].
(a)
(b)
(c)
(d)
Figure 2. Directed assembly of colloidal nanoparticles by AFM nanoxerography: (a) Principle, (b) to (d) Surface potential images
by KFM of various charge patterns after AFM charge writing (left) and topography images by AFM of the directed assembly of (b)
2 nm gold nanoparticles and ((c) and (d)) 100 nm latex nanoparticles on these charge patterns after development (right)
Topic n°2: Electrical nano-addressing and characterizations
a. Electrical nano-addressing
Nanoparticle assemblies were electrically addressed by stencil lithography. Contrary to conventional
resist-based processes, this technique is a single step process which avoids any contamination/degradation
of nanoparticles. The stencils are made of 200 nm thick membranes supported by windows defined by
DUV lithography and then transferred into the SixNy layer by anisotropic etching. Focused Ion Beam (FIB)
is used to define micro or nanometric windows having the geometry of the electrodes and micrometric
pads for connection to the electrical measurement set-up. Metallic electrodes and associated connections
are elaborated by metal evaporation through these stencils, previously aligned on the nanoparticle
assemblies.
b. Electrical characterizations
Among the original results recently obtained, we can mention the huge current fluctuations evidenced
on I(V) and I(t) measurements performed at room temperature on micrometric stripes of 20 nm gold
nanoparticles assembled by convective/capillary deposition (Fig. 3) [NTC-32]. These effects were interpreted
in terms of charging and discharging of nanoparticle islands leading to a huge electrostatic perturbation of
current conduction paths. These results reveal that current fluctuations in such systems have to be well
Nanotech - 34
understood and minimized otherwise they could lead to serious limitations on the operation of
nanoparticle-based devices.
Figure 3. (a) Electrical addressing of micrometric stripes of 20 nm gold nanoparticles by stencil lithography, (b) I(t)
measurements on the device presented in (a): current fluctuations at fixed bias voltage (0.2V) showing 99% maximum random
telegraph signal RTS
Topic n°3: Elaboration of colloid-based functional nanodevices
We used our experience on directed assembly of nanoparticles and electrical addressing to elaborate
two kinds of functional nanodevices: gaz sensors and strain gauges.
a. Gas sensors
The sensitive element of the gas sensor is a network of noble metal nanoparticles. We demonstrated that
the distance between nanoparticles and the conductivity of the organic ligands surrounding particles can be
strongly modified by interaction with solvent vapours or gases, consequently inducing a modification of
the conductivity of the particle network.
125
5
100
4
75
3
50
Conventional metal foil
strain gauges
25
2
Force (kgF)
(R-R0)/R0 (%)
b. Strain gauges
We demonstrated that compact metal nanoparticle films deposited on flexible substrates function as
highly sensitive strain gauges. Indeed, we showed an exponential dependence of the nanoparticle film
resistance on the applied strain due to the exponential dependence of the interparticle tunnel resistance on
the particle separation (Fig. 4). Our first results reveal that the sensitivity of these nanoparticle gauges can
be more than one order of magnitude higher than that of conventional metal foil strain gauges.
1
0
0
1
2
3
4
5
6
7
0
8
Strain (%)
(a)
(b)
Figure 4. (a) Schematics of a nanoparticle-based strain gauge, (b) Relative resistance change versus strain for a typical
nanoparticle-based strain gauge consisting of 20 nm gold nanoparticles functionalized citrate (red curve) – Response of a typical
metal foil strain gauge for comparison (green curve) - Force versus strain of the strain gauge (blue curve)
Contracts and grants:
Action Concertée Intégrée CNRS/MRNT/CEA: Directed Nano-Assembly (2002-2006)
 EADS foundation: Nanoparticle-based gas sensors (2008-2010)
Scientific collaborations:
LPCNO (Toulouse) – G. Viau, LCC (Toulouse) – C. Amiens, Microsystem laboratory of EPFL (Lausanne - Switzerland) – J.
Brugger, IEMN (Lille) – T. Melin
PhD student: E. Palleau : Nanoxérographie par AFM (2008-2011)
Nanotech - 35
2- Silicon nanocrystals (JG, LR)
Silicon nanocrystals provide a promising way to scale-down the electronic devices beyond the 22 nm
node. They also provide a link between electronics and optics, thanks to their ability to emit and guide light.
A recent field named silicon-based plasmonics is emerging and is an interesting way to couple efficiently
electronics and optics, using a fully compatible CMOS technology.
Topic n°1: Directed synthesis
High-dose ( 1016 cm-2) Si implantation in the 1 keV range into very thin (<10 nm) oxide layers
followed by thermal annealing at 900-1000°C allows for the formation of two-dimensional arrays of 2-5
nm silicon nanocrystals (NCs) at tunable distances from the SiO2 /Si interface[NTC-20]. We applied stencil
lithography, to direct the NC synthesis on specific areas of the plane. This approach leads to a limited
number (1000 minimum) of Si-NCs making a unit cell that is synthesized and positioned with a nanometric
precision. Fig. 5(a) and 5(b) are typical electron microscopy images of a sample implanted through a
stencil mask[NTC-23]. They clearly show Si implanted areas (in dark) which mimic the stencil mask windows.
Photoluminescence (PL) spectroscopy confirms the synthesis of Si nanocrystals localized in the stencil
windows (Fig. 5(c)) [NTC-21].
|
|
|
Length X (µm)
45 40 35
50
|
|
100 90
(c)
(b)
|
80
|
70
|
(a)
1µm
|
|
45
10µm
|
|
|
|
|
50
55
Length X (µm)
|
60
Figure 5. (a) SEM image of a sample implanted at 1x1016 Si+/cm2 through a stencil mask and annealed under N2 at 1050°C
during 30 min, (b) EFTEM image of an implanted cell, (c) PL spectrum of the sample shown in (a).
Topic n°2: Electrical nano-addressing and characterizations
a. I(V) and I(t) measurements
Si-NCs were electrically addressed in a vertical configuration using electron beam lithography (Fig.
6(a)). Electrical measurements demonstrated that such MOS capacitors are sensitive to detect single
electron effects (Coulomb blockade, single electron tunneling). Figure 6(b) shows a typical example of
charging of a single electron in a NC at room temperature. As the oxidation induces size reduction, the
electrical current is more sensitive to quantized charging of NCs. This results in larger peak widths in the
I(V) characteristics (Fig. 6(c)). Moreover, the current exhibits random telegraph signal (RTS)
characteristics with sharp current jumps which indicate the random and quantized capture and emission of
a single electron in a trap site (Fig. 6(d)).
3030
2020
Vg
1010
50 to 200 NCS
adressed
(a)
0
Vg
0
00
11
3
22 Tension (V) 3
Voltage (V)
4
4
55
2
600
400
200
0
11.4 9.8 7.3
5.1 4.4 3.7 3.4
Dot size (nm)
(b)
(c)
10
9
9
8
10
2
1000
800
Densité de courant (nA/cm )
P-sub
Référence
4040
Peak width (mV)
PMMA
With NCs Without
NCs
Courant (pA)
Current (pA)
Ti-Au
Echantillon contenant des nanocristaux
density (nA/cm2)
Current
Densité de courant (nA/cm )
10
5050
88
7
66
5
4
4
3
7
6
5
3
2
22
1
1
0
00
Vh=4 V
4
Vh=2,5 V
0
00
500
500
500
1000
1000
Time (s)
1000
1500
Temps
1500(s)
Temps (s)
Temps (s)
(d)
Figure 6. (a) Typical MOS capacitor fabricated by electron beam lithography, (b) I (V) measurements of such MOS capacitor, (c)
Experimental range of the current-peak widths (error bars) compared to the calculated current-peak widths corresponding to the
average dot diameters of the samples for a set of samples, (d) I(t) measurements of such MOS capacitor
Nanotech - 36
1500
2000
2000
2000
b. AFM/ KFM measurements of charge retention
AFM and KFM were used to study charge retention into Si/SiO2 structures containing a layer of Si
nanocrystals. Electrons were injected (or extracted) into (from) the oxide by applying negative (or positive)
bias to the conductive AFM tip in contact with the grounded structures. The temporal decay of injected
charges and their corresponding lateral spreading were quantified. Comparison with the results obtained
for a SiO2 layer without nanocrystals under varying relative humidity demonstrated that the presence of Si
nanocrystals leads to a strong charge confinement.
Topic n°3: Elaboration of Si NC-based functional nanodevices
Si-NCs single-transistor memory cells aiming at EEPROM-like applications were successfully
fabricated (Fig. 7(a)). Memory windows of about several volts were detected in the C(V) measurements
(Fig. 7(b)). The charge retention characteristics of the devices at room temperature, 85 and 115°C after 106
10ms +9/-9V programming cycles are shown in figure 7(c). Long time extrapolation indicates a 10-year
memory window of about several volts at 85°C.
Figure 7. (a) Typical MOSFET transistor containing NCs embedded in the SiO2 layer that creates an EEPROM used for Flash
Memories (b) C(V) measurement showing a memory window, (c) Retention time of one of this memory cell
Contracts and grants:
« Bonus Qualité Recherche du PRES de Toulouse » 2007, CEMES – LPCNO
« Bonus Qualité Recherche du PRES de Toulouse » 2008, CEMES, LPCNO, LAAS, IPBS
Scientific collaborations:
IMEL (Athenes - Greece) – P. Normand, CEMES (Toulouse) – G. Ben Assayag, Microsystem laboratory of EPFL (Lausanne Switzerland) – J. Brugger, CIRIMAT (Toulouse) – A. Barnabé
PhD student: Régis Diaz : Fabrication et caractérisations électriques des transistors MOS à base de nanocristaux de silicium dans
SiO2 (2008-2011)
3- Nanocharacterizations by AFM and derived modes (LR, JKG)
Our experience on AFM and its derived modes (LFM, EFM, KFM, SCM, MFM, nanolithography…)
allowed us to start collaborations with different industrials (CNES, Motorola) and research laboratories
(LAAS, LAPLACE, CIRIMAT…) on various subjects as failure analysis of devices, charge retention in
RF MEMs, control of process…
Among these various fruitful collaborations, we can mention two original works:
- the study by AFM and KFM of the dissolution mechanisms of S-phase particles in 2024 aluminum
alloy in chloride-containing sulfate solutions[NTC 24]. This work was performed in collaboration with C.
Blanc from CIRIMAT. The combination of these scanning probe microscopy techniques with energy
dispersive spectroscopy and secondary ion mass spectroscopy allowed the correlation between KFM
measurements and the corrosion behavior of 2024 alloy leading to a better understanding of the
electrochemical behavior of S-phase particles[NTC 25]. This work demonstrated that KFM is a very powerful
tool for the study of localized corrosion.
- the study by KFM, EFM and SCM of oxide charge measurements in flash-EEPROM memories[NTC 10,
12]
. We developed original and efficient descrambling techniques for EEPROM devices and we
Nanotech - 37
demonstrated that KFM, EFM and SCM can be used for data reading of these devices. This work,
supported by the DGA, was performed in collaboration with R. Desplats from the CNES.
Contracts and grants: « Bonus Qualité Recherche du PRES de Toulouse » 2005, LPCNO - CIRIMAT
Scientific collaborations: CIRIMAT (Toulouse) – C. Blanc, CNES (Toulouse) – R. Desplats, DGA (Brug) – J.Y. Guinamant et C.
Guérin
PhD students:
 L. Lacroix : Mécanismes de corrosion localisée de l’alliage d’aluminium 2024 : apport de l’AFM couplée au mode Kelvin (KFM)
et des alliages et systèmes modèles (2005-2008)
 C. De Nardi : Techniques de descrambling et de lecture de composants mémoires non volatiles (NVM) (2006-2009)
Nanotech - 38
OPTO
« Quantum Optoelectronics » Group
Equipe « Optoélectronique Quantique »
T. Amand (DR, CNRS), A. Balocchi (MdC INSA), H. Carrère (MdC INSA), X. Marie (Pr INSA, IUF),
M. Pugnet (Pr UPS), P. Renucci (MdC INSA), B. Urbaszek (CR CNRS)
Introduction
The « Quantum Optoelectronics » group investigates the optical and electronic properties of
semiconductor nanostructures with both a fundamental and an applied approach.
The main activity consists in the study of the spin physics in nanostructures or bulk compounds
using optical or electrical carrier spin injection. These researches have been undertaken with the aim to
uncover spin properties which could be used for spintronics or, in a more prospective way for quantum
information processing. These fields are the object of strong international research efforts and competition,
as e.g. in ETH Zurich (Switzerland), Dortmund University (Germany), Ioffe Institute (Russia), University
of Michigan and Naval Research Lab. (USA), NIMS Tsukuba (Japan) and in France LPN Marcoussis,
Institut Néel Grenoble, and Thales-UMP Palaiseau laboratories with which we interact in most cases,
either by direct collaboration or by scientific exchanges in conference meetings. Our experimental strategy
relies on developing original spectroscopic tools in order to investigate semiconductor nano-crystals or
nano-devices elaborated either by MBE epitaxy by our partners in France and abroad, or by chemical
synthesis at LPCNO. Different experimental set-ups have been recently built, such as time and polarisation
resolved spectroscopy in the picosecond range for ensemble of nanocrystals or bulk materials investigation
(VIS-NIR or UV-VIS range), high spectral resolution stationary magneto-micro-photoluminescence for
single nano-crystal analysis, stationary or time-resolved electroluminescence spectroscopy. The spin
properties are traced out through optical transition selection rules derived for each type of investigated
object. Our scientific objective aims at elucidating the fundamental spin properties of free or localised
carriers, exciton complexes, nuclei… in the investigated systems, and developing interpretative models.
After having performed pioneering works dealing with spin dynamics in quantum well or quantum dot
nanostructures which we recently summarized in a collective book edited by M. Dyakonov [OPTO 145], we
have developed in the past three years our research axis in four main directions which we will briefly
describe in the following. New effects were thus uncovered, such as electron and more recently hole spin
dephasing due to hyperfine interaction in InAs/GaAs quantum dots [OPTO1, OPTO43], the bistability of the
Dynamical Nuclear Polarisation (DNP) in InAs/GaAs single quantum dot [OPTO14, OPTO15], optical orientation
experiments in single GaAs/AlGaAs ―droplet‖ dot and associated DNP[OPTO34], electrical spin injection
experiments in hybrid ferromagnetic/semiconductor Spin-LED devices[OPTO35], including high-speed pulsed
electrical spin injection [OPTO44], spin relaxation quenching of excitons in cubic GaN/AlN quantum
dots[OPTO31], coherent spin dynamics of bound excitons in ZnO [OPTO39], spin filtering in GaAsN [OPTO45].
In parallel, we have used our expertise in optical spectroscopy and electronic properties of semiconductors
to perform more applied research activities, in collaboration with public research centres or industries. This
activity, supported by many research contracts, concerns the fields of (i) quantum engineering of optical
amplifiers and laser diodes for optical telecommunications (Alcatel-Thales, France-Telecom R&D, ANR
Telecom) [OPTO16]; (ii) failure analysis of material/devices for spatial applications (CNES, ONERA
contracts), (iii) luminescence properties of nano-crystals (InP) synthesized in the NCO group of LPCNO
for applications as markers in nano-oncology, (iv) new materials for photovoltaic applications (IRDEP
CNRS-EDF, NCO group)
OPTO - 39
1- Carrier and Nuclear Spins in InAs and GaAs quantum dots
PhD students and post-doctoral fellows: T. Belhadj (phD), C.-M. Simon (phD, shared with LCAR Lab.), P.F. Braun
(phD completed in 2007; now research engineer in Attocube Systems company)
Collaborations: P. Voisin, O. Krebs, A. Lemaître (LPN, Marcoussis, Fr); M. Chamarro, C. Testelin, B. Eble
(INSP,Paris, Fr), D. Paget (PMC, Palaiseau, Fr), A. Imamoglu (ETH, Zurih, Sw); V. Kalevich, V. Korenev (IOFFE Inst,
St-Petersburg, Russia); T. Kuroda (NIMS, Tsukuba, Japan)
Funding: ANR MOMES 2005-2009, Fond Social Européen, MOU with NIMS (Tsukuba), GDR “Quantum Information” and
GDR “Sesame : Spin Electronics”
The carrier spin states in individual InAs and GaAs quantum dots can
be manipulated optically and in transport schemes. The ultimate goal
of these fascinating experiments on a single carrier and single photon
level is the preparation, manipulation and read-out of a quantum dot
spin state in the context of quantum information processing. To
achieve this level of control two spin interactions have to be
understood: (i) the exchange Coulomb interaction between carrier
spins and (ii) the hyperfine interaction between carrier and nuclear
spins of the atoms that form the dot. We reported quantum beats of
the neutral exciton at zero magnetic field and surprising negative
polarization of the light emitted by negatively charged excitons. In
Fig. 1: Bistability of the nuclear
polarization (equivalent to an
addition to the detailed investigations of InAs quantum dots, we have
effective field of several Tesla)
also performed the first studies of the spin dynamics in strained-free
created through optical pumping
GaAs quantum dots grown by Droplet Epitaxy.
of a single InAs quantum dot.
Together with our collaborators our group provided the first
Phys. Rev. B 76, 201301 (R)
experimental evidence that both electron and hole spin life and
(2007)
coherence times in a quantum dot are limited by the interaction with
arbitrarily orientated nuclear spins. Under suitable conditions the
nuclear spins can be aligned through optical orientation and we were the first to publish that the resulting
nuclear polarization is bistable in both strained InAs and unstrained GaAs dots.
Main Publications: 3 Physical Review Letters, 9 Physical Review B [OPTO3, OPTO12; OPTO1, OPTO15, OPTO22, OPTO27,
OPTO33, OPTO36, OPTO43; OPTO34, OPTO40; OPTO143]
...
2- Spin dynamic in wide band-gap semiconductor hetero- and nano-structures : GaN and ZnO
PhD students and post-doctoral fellows: D. Lagarde (phD
completed in 2008; now CNRS Research Engineer in ClermontFerrand)
Collaborations: H. Mariette, B. Gayral (Institut Néel–CNRS and
CEA/DRFMC/SP2M, Grenoble, Fr) ; Z. X. Mei and X. L. Du (Beijing
National Laboratory for Condensed Matter Physics, IOP, CAS,
China); M. Sénès (Sharp Laboratory, Oxford, UK)
Funding: ANR MOMES 2005-2009, PRA France-China, BQR INSA, GDR
“Sesame : Spin Electronics”
Fig. 2 (a,b) Temperature dependence of the
exciton spin polarization up to room
temperature. Phys. Rev. B (R) 77, 041304
(2008)
The exciton spin polarisation in the quantum dots studied
above (InAs, GaAs) disappears generally around 90 – 100 K
because of the efficient carrier scattering into continuum
states (wetting layer, bulk) where efficient spin relaxations
occur. It is thus interesting, having in mind possible
applications operating at room temperature to explore other
semiconductor nanostructures where spin polarisation could
be more robust when the temperature raises. We selected thus
OPTO - 40
two compound wide gap semiconductors, GaN and ZnO, where spin-orbit coupling is much weaker than in
GaAs or InAs. The corresponding research axis has been thus devoted to the study of the carriers' spin
properties on GaN-based and ZnO-based materials. Thanks to weak spin–orbit coupling and large exciton
binding energy they represent also promising candidates for spintronics applications, allowing the control
and manipulation of the exciton spin, even at high temperature. In contrast to (In)GaAs based structures,
very little study has been done on the spin physics in these large gap materials. We have first concentrated
our investigations on two axes. On one hand the study of cubic phase GaN/AlN quantum dots, where we
have demonstrated for the first time that the free excitons are linearly polarized and that strikingly this
polarization persists without any temporal decay up to room temperature (fig. 2) [OPTO31, OPTO50]. These
results contrast with the fast exciton spin relaxation previously observed in other quantum dot systems at
high temperature. On the other hand we have as well showed the first experimental evidence of the
manipulation of the exciton spin in wurtzite InGaN quantum dots through the application of an external
electric field up to room temperature (collaboration with Sharp) [OPTO47].
In parallel, we have also investigated the spin properties of free and bound excitons in different ZnO
epilayers, grown in IOP (Beijing). These studies have showed for the first time that the hole spin relaxation
times is as long as 350 ps at T=1.7 K when the holes are localized by a donor potential in ZnO. The
spectral and temperature dependences of the measured PL polarization have also demonstrated the fast spin
relaxation of the free excitons and the implication of holes from both the A and B valence bands [OPTO32].
Moreover, the study of the luminescence polarization under a transverse magnetic field have allowed us to
measure the spin coherence through the analysis of the hole spin quantum beats [OPTO39].
Main publications: 3 Phys. Rev. B, 1 Applied Phys. Letters [OPTO31, OPTO50, OPTO47; OPTO32, OPTO39]
3- Electron spin control in dilute nitrides materials at room temperature
PhD students and post-doctoral fellows: L. Lombez (phD completed
in 2007, CNRS researcher CR in Paris from 1/9/2009); F. Zhao (phD
2008-2010) ; A. Kunold-Bello (Visting Professor, Mexico, 2009-2010)
Collaborations: J.-C. Harmand (LPN, Marcoussis, Fr); W. Chen. I.
Buyanova (University of Linköping, Sweden); V. Kalevich, E.
Ivchenko (IOFFE Inst., St-Petersburg, Russia);
Funding: EADS Foundation project “Room Temperature Spin
Electronics” (2006-2008); European Cost projects 144 and MP805 ;
ANR MOMES 2005-2009
Dilute nitride III–V semiconductors have been the subject of
intensive researches thanks to the discovery of the dramatic
Fig. 3 : Photoluminescence (PL) intensity
change of their optical and electronic properties induced by
x
with (excitation
) or without (exc.
)
incorporating a small fraction of nitrogen. We have shown
illustrating the spin-filtering effect. Right
recently that dilute nitride GaAsN is an excellent candidate to
axis: the corresponding PL intensity
fulfill the role of spin filter/detector. Our results have indeed
variation,
demonstrating
the
spin
shown that these dilute nitride compounds possess the
dependent recombination of conduction
remarkable property of a very long electron spin polarization
electrons. [Nature Materials 8, 198 (2009)]
lifetime even at room temperature, which could confer to
them an important role in the spintronics field [OPTO6,OPTO30,OPTO144] (fig.3). Thanks to time resolved
photoluminescence experiments, we have as well shown that this dilute nitride compound can be used as
an effective switchable electron spin filter under a polarized optical excitation of appropriate intensity
[OPTO41]
. More recently, through transport experiments, we have demonstrated the possibility of using these
materials as a polarization detector thanks to its giant spin dependent conductivity variation. Finally, with
an optically detected electron spin resonance experiment, we have provided the first direct evidence that
Ga-i self-interstitial is at the origin of this remarkable spin effects at room temperature without magnetic
field [OPTO45].
Main publications: 1 Nature Materials, 1 JOP invited article, 1 book chapter
OPTO45, OPTO144]
OPTO - 41
[OPTO6, OPTO24, OPTO30, OPTO41,
4- Electrical spin injection in hybrid ferromagnetic metal/ semiconductor heterostructures
PhD students and post-doctoral fellows: L. Lombez (phD completed in 2007), G. Truong (post-doc, 2008-2010)
Collaborations: J.-M. Georges, H. Jaffres (UMP CNRS-THALES, Palaiseau, Fr) ; A. Lemaître (LPN, Marcoussis, fr); Phi
Hoa Binh (Institut des Matériaux, VAST, Hanoi, Vietnam) ; Y. Lu (LPM, Nancy, fr); C. Fontaine (LAAS, Toulouse, Fr)
Funding: ANR MOMES 2005-2009; PICS CNRS, Vietnam
An efficient injection of spin-polarized electrons from a ferromagnetic (FM) source into a semiconductor
heterostructure represents nowadays a prerequisite for the realization of spintronics devices using the spin
degree of freedom as additional functionalities. (i) We have observed a very high electron spin injection
efficiency (comparable to the best one obtained by S.S. Parkin. at IBM (San Jose)) from a CoFeB/MgO
spin injector into AlGaAs/GaAs semiconductor light emitting diodes. Moreover, the spin injection
efficiency increases with the thickness of the MgO tunnel barrier and is stronger for textured MgO than for
amorphous MgO. (ii) In addition to efficient injection, long electron spin relaxation time (as in quantum
dots) is a requirement for efficient storage and manipulation. The injection of spin polarized electrons
through Co/Al2O3/GaAs tunnel barrier into p-doped
InAs/GaAs quantum dots has been established up to
70K. (iii) For future applications, it is also important
to perform very high speed pulsed operation. We
have demonstrated for the very first time high speed
pulsed electrical spin injection from a CoFeB/MgO
spin injector into a AlGaAs/GaAs semiconductor
light emitting diode. Under pulsed electrical
excitation, time-resolved electroluminescence on
nanosecond time-scale evidences that the temporal
build-up of the electronic spin polarization degree in
the quantum well is much faster than the rise time of
electroluminescence intensity.
Figure 4: Electroluminescence circular polarization as a
function of Magnetic field (a), and temperature (b) for a
MgO based Spin-LED. From Appl. Phys. Letters 93,
152102 (2008).
Main Publications : 3 Applied Physics Letters, 1
book chapter [OPTO23, OPTO25, OPTO35, OPTO44, OPTO146]
5- Applied research activity : optoelectronic materials and devices
PhD students and post-doctoral fellows: G. Truong (post-doc, 2008-2010)
Collaborations: R. Brenot, F. Alexandre (Alacatel-Thales III-V lab, Marcoussis, Fr); B. Thedrez (Sup Telecom, Paris,
Fr); P. Chanclou (France Telecom R&D, Lannion, Fr); J.-C. Harmand (LPN, Marcoussis, fr) ; F. Laruelle (Avanex,
Nozay,Fr); P. Miska, S. Loualiche (Photon Lab, INSA-Rennes, Fr); O. Gilard (CNES, Fr) ; A. Gauffier (ONERA,
Toulouse, fr)
Funding: RNRT Metral, ANR Telecom AHTOS, ANR Telecom AROME, 3 CNES contracts, 1 ONERA contract
The Quantum Optoelectronics group at LPCNO has always been involved in applied research projects. On
one hand, the group has acquired a deep expertise in semiconductor quantum wells modeling for
telecommunication applications, in collaboration with Alcatel-Thales Opto+, 3-5 Lab, LPN-CNRS,
Avanex, France-Telecom R&D. We calculate the band structures and the absoption/gain spectra on the
basis of k.p formalism ; we compare the theoretical predictions with standard optical spectroscopy
experiments (cw photoluminescence and photo-current spectroscopy). We also study the potentialities of
InAs/InP quantum dots for laser or amplifier applications. On the other hand, we have more recently
developed collaborations with spatial industries through CNES and ONERA contracts.
Telecommunication projects (RMNT and ANR fundings):
In the past five years, we have been involved in one RMNT and two ANR projects dedicated to
telecommunication applications:
OPTO - 42
-
-
-1
Material gain (cm )
-
AHTOS (ANR Telecom): this program aims at promoting the use of dilute nitrides in quantum well (QW)
laser heterostructures to reach long wavelength emission (InGaAsN QW grown with compressive strain on
GaAs substrates for 1.3µm emitting sources in TE mode and InGaAsN QW grown with tensile strain on
InP substrates for 1.55µm emission and above in TM mode). These studies have shown that InGaAsN QW
combined to GaAsP barriers on GaAs substrates are promising structures for 1.3µm laser devices with high
temperature performances [OPTO5]. InGaAsN/InAsP grown on InP substrates allows to reach the
telecommunication L-band. The introduction of a fraction of nitrogen as small as 3% is enough to go above
the emission wavelength of 1.57µm and to induce an increase of the material gain by a factor 3 [OPTO16].
METRAL (RMNT): the target of this project was to develop reliable 10Gbit/s devices with InGaAs based
structures with Aluminium barriers. Our main role was the calculation of the band structure yielding the
optimized material.
AROME (ANR Telecom): this project aims at optimizing the polarization insensitive Semiconductor
Optical Amplifiers (SOA) based on InGaAsP. Our
first calculations have shown that an optical gain
TM
linewidth larger than 130 nm with a TE/TM
TE
1000
polarization dependence lower than 1 dB could be
Increasing
obtained
using
a
3-quantum-well
carrier
In0.53Ga0.47As0.96P0.04 /InGaAsP active layer with
density
100
quantum well thicknesses of 10, 14 and 19 nm. More
recently, we have observed that larger bandwidths
could be obtained with only one thickness (14 nm)
10
QW structures, taking advantage of raising e2-hh2/lh2
emission at high carrier injection densities (fig. 5 ).
1350
1400
1450
1500
1550
1600
(nm)
l (nm)
Figure 5: Calculated material gain as a function of the
wavelength in strained-engineered InGaAsP quantum
wells to get equal TE and TM gain on a large optical
spectrum (unpublished).
-
-
Space application projects (CNES and ONERA contracts):
The LPCNO is a member of the RTRA ―Sciences et Techniques Aéronautiques et Spatiales (STAE)‖ in
Toulouse. Thanks to its expertise in optics and optical spectroscopy, the Quantum Optoelectronics group
has been involved in several CNES and ONERA contracts in relation with space applications of
optoelectronic material and devices.
The CNES projects were dedicated to the investigation of failure analysis of (i) double hetrostructures
diode lasers for space applications (Pharao mission) (ii) optical elements under strong laser irradiance for
the Mars Rover (Chemcam project). For these contracts specific environmental test chambers have been
designed and built (controlled temperature, pressure, laser irradiance, etc…)
The ONERA project has consisted in performing time resolved photoluminescence on 3-junctions solar
cells (Ge, GaAs, InGaP) before and after irradiation at ONERA: we observe a dramatic drop of the
luminescence lifetime after irradiation with electrons or protons which reflects the creation of defects.
These data will allow the CNES to predict the lifetime of the solar cells in space.
Main Publications : 4 Applied Physics Letters… [OPTO5, OPTO7- OPTO9, OPTO11, OPTO16-OPTO18, OPTO28, OPTO38, OPTO42,
OPTO46]
OPTO - 43
MPC
« Physical and Chemical Modelling » group
Equipe « Modélisation Physique et Chimique »
Iann Gerber (MdC INSA), Franck Jolibois (MdC UPS), Laurent Maron (Pr UPS)
Lionel Perrin (CR CNRS), Romuald Poteau (Pr UPS)
Introduction
The theoretical ―MPC‖ group of the LPCNO was created in october 2005 and initially constituted by
researchers coming from another laboratory of the IRSAMC institute for research, namely the Laboratoire
de Physique Quantique (UMR 5626). People involved in the seminal group were J.-P. Daudey (JPD), F.
Jolibois (FJ), L. Maron (LM), R. Poteau (RP) and G. Trinquier (GT). A fruitful collaboration already
existed between JPD (who sadly passed away in October 2008) and B. Chaudret, and more generally
organometallic chemistry was the main subject of research of most of us. The driving force at the origin of
the LPCNO was to mix multidisciplinary approaches in the field of nanoscience. After several scientific
discussions with B. Chaudret, it rapidly appeared that bringing relevant contributions to shed light on the
complex physics and chemistry of nano-objects shall be an exciting challenge for theoretical chemists. We
thus founded the MPC group, which has been rapidly reinforced by the nomination of an assistant
professor in September 2007, I. Gerber (IG), who brought a strong expertise in DFT methodology and
theoretical solid-state physics, as well as a valuable know-how in computational physics, namely periodicDFT methods. After a two-year secondment period, GT came back to its initial laboratory, whereas L.
Perrin (LP, Chargé de Recherche at the CNRS) joined us in march 2008. His skills in organometallic
chemistry and more specifically in biomolecular chemistry will be helpful in the future to consider
problems in the field of bio-nanoscience.
We have maintained and developed a strong activity in our initial fields of research:
Electronic and geometrical structure of d-block and f-block catalysts, and their reactivity. This has
led to an extended knowledge in the mechanisms of reactions involved in homogeneous catalysis
and in the interactions between d and f metals and ligands, which brings valuable informations to
the numerous experimental groups which have established an interaction with our group. In
addition, the limitation of density functional theory for describing coordination and reactivity
properties in actinide complexes has been determined. This opens the road to systematic studies in
the field of organoactinide chemistry.
The relation between structure, dynamics and spectroscopic fingerprints of biomolecular systems.
So far biochemical complexity is considered, the theoretical research of the most stable geometry
is probably not relevant, owing to dynamical motion of the nuclei and environment effects. The
methodological strategy initiated some years ago and which has shown its ability to validate the
actual geometry of biomolecules relies on the coupling of experimental NMR and theoretical
calculations of NMR parameters. One interesting side-effect was the birth of a new know-how in
the group, namely the calculation of solution and solid-state NMR parameters, both for dipolar and
quadrupolar nuclei. As we shall see later, it has been successfully used in the context of
organometallic clusters and species adsorbed on ruthenium bulk surfaces.
Although all these applications are very time consuming, methodological developments have also
been undertaken.
o A long-time neglected subject about molecular pseudopotentials has recently witnessed a
renaissance. It could be useful in the near future for describing accurate – albeit low-cost ligand-field effects at the surface of NPs.
o Density functional theory is a tool of choice for describing chemical systems. However, it
is well know that it suffers limitations, in particular the lack of dispersion interactions in
standard functionals. IG is still involved in methodological improvements in order to
circumvent that drawback.
MPC-45
o
The ab initio molecular dynamics package developed in our group (LM, FJ) has still been
used in order to elucidate the role of the motion of nuclei on spectroscopic or structural
properties.
o Finally, one should pay attention that some applications require to carefully define
calculational strategies which are connected in some way to methodological developments
(role of f electrons in organoactinides, extraction of theoretical NMR data taking into
account dynamical effects, …)
This knowledge has constituted the ground for developping new orientations in relation with nano-objets:
the organometallic NPs synthesized and charcaterized in the ―Nanostructures and Organometallic
Chemistry‖ group of the LCC as well as carbon nanotubes characterized in the ―nMat‖ group of the
CEMES. More recently, the reactivity at the surface of single-wall carbon nanotubes has also been
considered.
Homogeneous catalysis by d-block and f-block catalysts (LM, LP)
This activity can be divided into four topics that have connections with each other. The first topic is to
understand and predict the reactivity of organolanthanide complexes. This work is done in close
collaboration with experimental groups (Pr. R. A. Andersen, UC Berkeley & Pr. J. Okuda, Aachen). The
idea has been to predict some peculiar reactivity, different from the classical bond metathesis that often
occurs with lanthanide complexes. We have been to demonstrate that the reactivity of halogenomethane
(but also of alkylether or amine) with Cp2CeH was controlled by the formation of a transient carbene that
was trapped experimentally. Thus, the reactivity of lanthanide complexes is not always the same and it
opens a new field of research. The reactivity of mono or dications[MPC-55] is also investigated and an
unprecedented single electron C-C coupling between pyridyl rings has been proposed.
In a same way, we have investigated the mechanism of the ring opening polymerization of cyclic esters to
lead to renewable polymers. In collaboration with experimental groups from France (Pr. J-F Carpentier et
Dr. S. Guillaume , Rennes) and England (Pr. Ph. Mountford, Oxford), we have studied the influence of
borohydride lanthanide complexes on this reactivity[MPC-61,62]. We have shown that the reactivity of the
borohydride is controlled by the charges (mainly at the metal center and thus by the ancillary ligand).
Strongly negatively charged ligands (such as amide-bisamido used by Ph. Mountford) lead to a better
activity for caprolactone or lactide polymerization than trisborohydride or Cp-type complexes (used by Dr.
S. Guillaume). In the former case, we have shown that two types of chain end can be obtained, either the
alcohol one (classical, due to two B-H activations) or a aldehyde one (unsual with only one B-H activation
and the realease of BH3).
Moving from organolanthanide to organoactinide chemistry is of course natural but not an easy task.
Indeed, 5f orbitals are known to be more active in bonding than the 4f ones. We have however in
collaboration with experimental groups (Pr. R. A. Andersen, UC Berekeley, Dr. P. L. Arnold, Edinburgh)
starts to investigate the reactivity of Uranium complexes. The presence of different stable oxidation state
for uranium makes it reactivity complicated to study. However, we have been able to show that the
reactivity of uranium IV complexes is mainly of bond metathesis type and we explained the difference of
reactivity of an oxo and imino ligand (difference of bonding mode) [MPC-47]. In collaboration with Dr. P.
Arnold, the reactivity of the very inert U-O bond of the uranyl ion (UO22+) with silane has been
investigated. The question was the real effect of the
macrocyle used to coordinate the uranyl ion. We have been
able to show that the reactivity is a single electron reduction
(to form a strong O-Si bond) but that the presence of two
equivalent of KH was crucial. Indeed, a double deprotonation
is occurring on the macrocyle to lead to uranyl-potassium
interactions[MPC-65].
Finaly, in close collaboration with the experimental group of
Dr. D. Bourissou (Toulouse), the interaction between Lewis
acid (such as group 13 or hypervalent group 14) is
investigated. Indeed, the group of Dr. D. Bourissou is
Fig. 1: Weakly bonding molecular orbital
controlling the formation of the so-called ―ambiphilic ligands‖,
between gold and silicon in the [othat exhibits a Lewis acid and Lewis bases. The idea was to
+
(iPr P)C H ] SiFAu complex
2
6
4 3
MPC-46
determine the key parameters that control and tune the interaction between the Lewis acid and the metal
center[MPC-35,48,60]. We have been able to show that increasing the Lewis acidity, by going down the group
13, is leading to formation of zwitterionic complexes rather than neutral complexes. Indeed, the Lewis acid
is extracting the halogen ligand from the metal center (mainly gold). We have been able to show that this
extraction was occurring from the classical metal-Lewis acid interaction. The main interest of such ligand
is that the density at the metal center can be tuned by the presence of the Lewis acid and we are
investigating the effect on the reactivity[MPC-27,39,70]. A comparison between d and f element reactivity is
taking place on simple propene and ethylene polymerization.
Contracts and grants: ANR BILI (2006-2009), ANR BIOPOLYCAT (2008-2010), PICS France-Berkeley (2005-2008), PhD funding
from the PRES „Université de Toulouse‟ and the Région Midi-Pyrénées.
Scientific collaborations: R. A. Andersen (UC Berkeley, USA), T. DonTilley (UC Berkeley, USA), P. L. Arnold (U. Edinbourg,
Ecosse), J. Okuda( U. Aachen, Allemagne), Ph. Mountford (U. Oxfrord, Angleterre), F. G.Cloke (U. Sussex, Angleterre), K. Mayer
(U. Erlangen, Allemagne), P.Roesky (U. Karlshrue, Allemagne), M. Lappert (U. Sussex, Angleterre), J-F. Carpentier et S.
Guillaume (U. Rennes, France), D. Bourissou (U. Toulouse, France), F. Bonnet, M. Visseaux (U. Lille, France), M. Ephrithikine
(CEA Saclay, France), Ch. Copéret (U. Lyon, France) O. Eisenstein (U. Montpellier, France), A. Ramirez-Solis (U. Cuernavaca,
Mexique)
PhD and post-doctorant students: Noémi Barros (2004-2007, CEA), Maxime Mercy (2006-2009, ANR BILI), Nicolas Susperregui
(2007-2010, MENESR), Ahmed Yahia (2007-2010, CEA), Pauline Gualco (2008-2011, PRES), Chiara Dinoi (2009, post-doctorant
gouvernement italien)
Biomolecular systems
Proteins and peptides: structure, dynamics and spectroscopy (FJ, LP)
Further years ago, a collaboration with V.Réat and A.Milon has been initiated on the study of model
membrane systems. This collaboration relies on the coupling of experimental NMR data measurements on
sterols inserted in a phospholipid membrane with theoretical chemical shifts tensor parameters
calculations[1]. Since then, new theoretical and experimental strategies have been developed in order to
characterize the orientation of more complex membrane systems in their ―native‖ environment as well as
their dynamic behaviour. Solid state NMR experiments have been implemented on a synthetic model
peptide (WALP23, 25 residues) in order to provide, in a first step, the data necessary to the development of
the theoretical calculation strategies (isotropic chemical shifts, chemical shifts anisotropies of specific
residues,…) and, in a second step, to determine the different parameters that characterize the dynamics of
this peptide by using theoretical and experimental data. Our work (L.Rougier and F.Jolibois) leads to a
quantum theoretical approach that allows calculating quantitatively chemical shift tensors, eigenvalues and
eigenvectors, of selected 15N and 13C atoms of the backbone of WALP23 with a minimum computational
effort. Our methodology is based on i. the modification of the peptide by removing all residues, except the
ones closed to the atoms of interest; ii. the used of an external electric field of low intensity, along the
peptide main axis, to perturb the hydrogen bond network created by the backbone[2]. Comparison of
60%
20%
0%
ii
-
iso
(% ppm)
40%
-20%
-40%
0
20
40
60
80
100
Electric field (a.u.)
Fig. 2: ―Artistic‖ view of WALP23 peptide and electric field effects on 15N chemical shield tensor relative to experiment.
experimental NMR powder data (chemical shielding tensors of two specifically labelled WALP peptides)
with computed NMR parameters validates our approach. In addition, these tensors have been merged to
experimental constraints obtained by solid-state NMR experiments (2H quadrupolar couplings, 1H-15N
dipolar couplings and 15N and 13C chemical shift anisotropies motionally averaged by the peptide dynamic
inside the membrane). Statistical analysis of these combined data allowed us to explore the versatility of
solutions in term of tilt, wobble, rotation and oscillations and a final unique solution has been proposed[3].
Our conclusions remove a controversy that exists between others NMR studies and molecular dynamics
simulation[4]. Currently, the variations of chemical shielding tensors as function of fast internal dynamics
MPC-47
are being analysed by calculating these tensors on a series of WALP23 conformations extracted from
molecular dynamics simulations. This part of the project is carried out in collaboration with P.Fuchs and
C.Etchebest who perform molecular dynamics computations.
This collaboration with the IPBS group has led to a new project that deals with the study of the selfassembly process of an cyclo-octapeptide. Experimentally, it has been demonstrated that this peptide selforganised itself into a doubled wall nano-tube. The growth process of this nano-object follows up to four
hierarchical assembly stages. Our aim is to extend the combined methodology developed previously to
study the elementary steps involved in self-assembly mechanism. Currently, structural, IR and NMR data
of the monomers have been determined theoretically and are compared to experimental data in order to
determine the most favourable conformation of the building block of the nano-object. At full-term, our
goal is to derive guidelines for the design of peptides that will self-assembled in tailor-made objects. For
this subject, collaborations with M.Paternostre (CEA-Saclay), J.Cortès (LAAS) and with the IPBS have
been established.
[1] F.Jolibois, O.Soubias, V.Réat, A.Milon. 2004. Chemistry : A European Journal 10:5996-6004 ; O.Soubias,
F.Jolibois, V.Réat, A.Milon. 2004. Chemistry : A European Journal 10:6005-6014 ; O.Soubias, F.Jolibois, S.Massou,
A.Milon, V.Réat. 2005. Biophysical Journal 89:1120-1131.
[2] L.Rougier, V.Réat, F.Jolibois. 2009 In preparation.
[3] A.Holt, L.Rougier, V.Reat, F.Jolibois, O.Saurel, J.Czaplicki, J.A.Killian, A.Milon 2009. J. Am. Chem. Soc.,
submitted.
[4] S.Ozdirekcan, C.Etchebest, J.A.Killian, P.F.J.Fuchs, J. Am.Chem.Soc. 2007. 129, 15174.
Contracts and grants: PhD funding from the PRES „Université de Toulouse‟ and the Région Midi-Pyrénées.
Scientific collaborations: Collaboration on the determination of NMR parameters of membrane biological systems: V.Réat and
A.Milon (“NMR and protein-membrane interactions”, IPBS, Toulouse, France), and P.Fuchs and C.Etchebest (“Dynamics of
Structures and Interactions of Biological Macromolecules”, DSIMB, Paris, France).
Collaboration on the study of peptide self-assembly mechanism with P.Demanges, V.Réat and A.Milon (“NMR and protein membrane interactions”, IPBS, Toulouse, France), M.Paternostre (“PMTE”, CEA-Saclay/iBiTec-S/SB2SM, France), J.Cortès (“RIS”,
LAAS, Toulouse, France).
PhD Thesis: Léa Rougier “Quantum chemistry and NMR: membrane proteins dynamics study by combining experimental and
theoretical approaches” Supervision in collaboration with V.Réat (10/07 – 10/10).
Peptidomimetics (FJ, RP)
A peptidomimetic is a molecule bearing identifiable resemblance to a peptide that, as a ligand of a
biological receptor, can imitate or inhibit the effect of a natural peptide. Such bio-inspired polymers could
also be useful in the field of nanoscience, as drug candidates or as encapsulation compounds. It is often
claimed that the forefront of the field is the rational design of such compounds by means of database
searching, combinatorial chemistry, screening approaches and computational chemistry. We have initiated
studies in that context: one research axis was a purely in silico design of non-conventional all-cis
peptides[MPC-37], whereas the second one was an experimental / theoretical exploration of the properties of
hybrid urea-peptide oligomers[MPC-58]. We have in particular delineated the propensity for local folding
induced by the urea fragment in such hybrid compounds, and have undertaken a detailed conformational
investigation of short-chain ureido peptidomimetics using a combination of experimental techniques (i.e.
Xray diffraction, FT-IR absorption and NMR spectroscopy) and theoretical calculations using density
functional theory (DFT). Such combined approach is very powerful and has confirmed the preference for a
rigid and folded structure which is reminiscent of the 14-helical structure of 4-peptides.
Scientific collaborations: G. Trinquier (UMR 5215, Toulouse), G. Guichard (Institut de Biologie Moléculaire et Cellulaire,
Immunologie et Chimie Thérapeutiques, Strasbourg)
Nano-objects
Metallic clusters and nanoparticles (IG, FJ, LM, RP)
Organometallic nanoparticles (NPs) elicit a great interest due to their physical and chemical properties
intermediate between small molecular compounds and the bulk material, resulting from surface or quantum
size effects. Ruthenium is a catalytically very interesting element, organometallic ruthenium complexes
being in particular involved in the homogeneous olefin methathesis. Ruthenium NPs are also powerful
catalysts in many organic and inorganic transformations. Such NPs exhibit several surface species, which
MPC-48
prevent their coalescence, but which may also interact with other surface species, such as hydrides, which
are known to be abundant with 1.3H to 2H per surface Ru. Quantum chemists face a challenge, owing to
the size of these species and the difficulty to determine their wavefunction. Three complementary
approaches may bring different insights: (i)
the bottom-up route, which consists in the
accurate description of small organometallic
clusters and in an extrapolation to NPs, (ii) the
top-down route, which consists in the
description of ligands adsorbed at the surface
of slab models by means of periodic quantum
chemistry methods, (iii) the actual description
of NPs, which may be achieved by density
functional theory (DFT) methods, but which
are rather the scope of semi-empirical
approaches. The detailed bonding situation of
the hydrogen or deuterium to the Ru surface is
a
prerequisite
to
understand
the
transformations which occur at the surface of
organometallic NPs. Recently, structural and Fig. 3: Where does H adsorb at the surface of ruthenium NPs ?
spectroscopic properties of scale models of Assistance by periodic-DFT calculations of the assignment of
experimental 2H NMR spectra of ruthenium NPs.
ruthenium NPs have been investigated: several
[Ru]4 and [Ru]6 organometallic clusters,
previously synthesized or non-existent, have provided useful results in the context of organometallic
ruthenium NPs. We have more particularly focused on the NMR properties of these compounds and
established a link between electron-deficiency and low-field resonance of hydrides adsorbed at the surface
of Ru clusters or NPs[MPC-67]. From a more general point of view, NMR and MAS-NMR techniques are of
high practical importance for characterizing the presence of hydrides (or deuterides) in ruthenium clusters
and nanoparticles. According to the work done in the specific context of Ru clusters and mononuclear
complexes[MPC-49], DFT calculations of chemical shielding tensors as well as electric field gradient tensors
seem accurate. This information is available in the 1H or 2H NMR parameters, particularly in the
quadrupolar coupling constant. Very recently, reference data on well-defined mononuclear Ru complexes
have been experimentally determined (J. Am. Chem. Soc. 130 (2008) 17502) in remarkable agreement
with DFT calculations[MPC-77]. In other words, DFT calculations are also able to provide reference data on
well-defined Ru-H compounds. We believe that low-temperature 2H MAS NMR spectra, which are rather
easy to obtain, could be more reliably analyzed by a joined experimental / computational approach.
Contracts and grants: ANR SIDERUS (2009-2012, 60 k€)
Scientific collaborations: B. Chaudret and K. Philippot (LCC, Toulouse), G. Buntkowsky (Technische Universität Darmstadt,
Germany), H.-H. Limbach (Freie Universität Berlin, Germany)
PhD Thesis: I. del Rosal (2006-2009, MESR)
Carbon nanotubes: functionnalization and vibrational properties (IG, FJ, RP)
Carbon nanotube (CNT) properties are directly related to their particular structure. Most growth processes
of CNTs lead to a relatively wide distribution in diameter and length. Recent studies have shown how the
diameter distribution can be narrowed or how CNTs can be sorted according to their helicity or chirality[1].
Doping CNTs is an attractive alternative to control the electronic conductivity of CNTs independently of
their diameter[2]. Concerning the characterization of the tubes, one of the important information available
from Raman spectra of CNTs, is the band due to the radial breathing mode. Using density functional
theory and a spring constant model we have studied the influence of the radial breathing frequency as a
function of nitrogen substitution and concentration[MPC-73]. We have shown that stable substitution
configurations do not favor the formation of nitrogen-nitrogen bonds at low concentration in zig-zag tubes
and that the radial breathing frequency depends strongly on the substitution site in the tube.
Recent studies of metallic nanocatalysts supported by CNTs have shown very encouraging results
concerning activity and selectivity in various type of chemical reactions[3]. Before the deposit of metallic
nanoparticles, the pretreatment of the nanotube walls by nitric acid appears to play a crucial role for the
dispersion of the nanocatalysts, for the adsorption and the diffusion of the reactants[4]. In collaboration with
MPC-49
the group of Ph. Serp, we have investigated, the early stages of nitric acid attack on the sidewalls of CNTs,
and more specifically the reactivity of defects such as vacancies by means of DFT calculations in a
combined molecular and periodic boundary conditions approach. By a joined attack of H+ and NO3- species
on these specific sites of adsorption, a possible scenario for the formation of carboxylic groups has been
proposed[5].
[1] B. Kitiyanan, W. E. Alvarez, J. H. Harwell, and D. E. Resasco, Chem. Phys. Lett. 317, 497 2000.
[2] R. Czerw et al., Nano Lett. 1, 457 2001.
[3] Nanocatalysis Edited by Ulrich Heiz and Uzi Landman. From the series: Nanoscience and Technology. Edited by
P. Avouris, B. Bhushan, D. Bimberg, K. von Klitzing, H. Sakaki and R. Wiesendanger. Springer: Berlin, Heidelberg,
New York, 2007.
[4] E. Roduner, Chem. Soc. Rev, 2006, 35, 583-592.
[5] I. C. Gerber, R. Poteau and F. Jolibois, Nitric acid attack on carbon nanotubes sidewalls, in preparation.
Contracts and grants: APR PRES Université de Toulouse 2008 : 20k€
Scientific collaborations: A. Krasheninnikov and R. Nieminen (Laboratory of Physics, Helsinki University of Technology, Finland) ;
P. Puech and W. Bacsa (CEMES, Toulouse, France) ; Ph. Serp (LCC, Toulouse,France)
Methodological developments
Dispersion forces in density functional theory (IG)
Density-functional theory (DFT) is a powerful tool for electronic structure calculations of molecular as
well as condensed-matter systems. However, one of the main difficulties in its Kohn-Sham formulation
using common local density or generalized-gradient approximations of the exchange-correlation effects, is
the description of nonlocal correlations, such as those involved in weak van der Waals complexes, only
bound by dispersion forces. However, the adiabatic-connection fluctuation-dissipation theorem (ACFDT)
approach is one of the most promising ways of constructing highly nonlocal correlation functionals. This
approach, introduced in wave function theory as well as in DFT, consists in extracting nonlocal groundstate correlations from the linear charge density response function. After several successful attempts in
combining DFT/ Wave-Function approach, e.g RSH+MP2[MPC-16], we have recently proposed an ACFDT
scheme based on a range separation of electron-electron interactions[MPC-66]. It involves a rigorous
combination of short-range density functional and long-range random phase approximations. This method
corrects several shortcomings of the standard random phase approximation and it is particularly well suited
for describing weakly bound van der Waals systems, as demonstrated on the challenging cases of the
dimers Be2 and Ne2.
Scientific collaborations: J. Angyan (CRM2, Nancy Université, France) ; J. Toulouse and A. Savin (LCT, Université Pierre et Marie
Curie, Paris) ; M Marsman and G. Kresse (CMS Universität Wien, Austria)
Effective Group Potentials (LM, RP)
There is a need for lowering the cost of quantum chemistry calculations. Effective group potentials (EGPs)
aim at simplifying molecular ab initio calculations for large systems involving bulky ligands as long as
these ligands can be supposed to play the role of spectator groups. In an EGP, a group of atoms is replaced
by fictitious atoms associated with energy levels and orbitals necessary for representing the
active/spectator bond(s). The definition of EGPs and the way to derive their parameters have been given by
some of us a decade ago. The accuracy and limitations of this tool has been discussed in several papers,
mainly devoted to organometallic compounds and its usefulness in terms of solution to the link atom
problem has also been considered. A summary of the cons and pros of EGPs has temporarily ended this
successful attempt to reduce the computational time by reducing both the number of electrons and nuclei
explicitly treated in ab initio calculations[MPC-28].
We have recently provided new directions for the derivation of multicentered EGPs and also shown that ab
initio molecular dynamics simulations can take advantage of the reduction of the cost involved by EGPs,
owing to some limitations, which should be overcomed in the next generation of these molecular
pseudopotentials[MPC-78]. New results for a tetrahedral ruthenium cluster, where Ar stands for a pseudo
ligand, are provided, as well as a joint EGP/ab initio MD study aiming at finding free energies of
activation in a bis-cyclopentadienyl lanthanide complex. Our main conclusions are : (i) EGPs could
provide an accurate ligand-field for organometallic NPs ; (ii) the EGP/ab initio molecular dynamics
MPC-50
coupling could be useful for taking into account dynamical effects in the context of long time-scale
spectroscopic methods such as NMR.
Scientific collaborations: Ch. Raynaud (Institut Charles Gerhardt, Montpellier, France)
MPC-51
List Of Publications
†
†
Since January 2008, almost all publications affiliated to the LPCNO can be found with the Web of Science by
entering ―LPCNO‖ in the address field, whereas several articles published in 2007 can be found by entering
―Laboratoire de Physique et Chimie des Nano-Objets‖ and other variants. An exhaustive search can be done by using
the ―advanced search‖ tool, with the keyword: ad=(LPCNO or "Lab Phys* & Chim* Nano objets" or "Lab Phys* &
Chim* Nanoobjets" or "Lab Phys* & Chim* Nano Objects" or "Lab Phys* & Chim* Nanoobjects").
Codification table / Codification des publications et productions
ACL :
Peer-Review articles referenced in international databases (Web of Science) / Articles dans des revues
internationales ou nationales avec comité de lecture répertoriées par l‘AERES ou dans les bases de données
internationales (ISI Web of Knowledge, Pub Med…).
ACLN : Peer-Review articles not referenced in international databases /Articles dans des revues avec comité de
lecture non répertoriées dans des bases de données internationales.
ASCL : Articles without peer-reviewing / Articles dans des revues sans comité de lecture.
INV :
Invited conferences / Conférences données à l‘invitation du Comité d‘organisation dans un congrès
national ou international.
ACTI : International proceedings / Communications avec actes dans un congrès international.
ACTN : National proceedings / Communications avec actes dans un congrès national.
COM : Oral communications without proceedings / Communications orales sans actes dans un congrès
international ou national.
AFF : Posters / Communications par affiche dans un congrès international ou national.
OS :
Books or chapter books / Ouvrages scientifiques (ou chapitres de ces ouvrages).
OV :
Books for the general public / Ouvrages de vulgarisation (ou chapitres de ces ouvrages).
DO :
Edition of books / Directions d‘ouvrages ou de revues.
AP :
Other / Autres productions : bases de données, logiciels enregistrés, traductions, comptes rendus
d‘ouvrages, rapports de fouilles, guides techniques, catalogues d‘exposition, rapports intermédiaires de
grands projets internationaux, etc.
NCO
« Nanostructures and Organometallic Chemistry » Group
Equipe « Nanostructures et Chimie Organométallique »
ACL
2005
[NCO-1] N. Chakroune, G. Viau, S. Ammar, N. Jouini, P. Gredin, M.-J. Vaulay, and F. Fiévet,
Synthesis, characterization and magnetic properties of disk-shaped particles of a cobalt alkoxide
CoII(C2H4O2)
New J. Chem., 29, 355-361 (2005).
[NCO-2] D. Ung, G. Viau, C. Ricolleau, F. Warmont, P. Gredin, and F. Fiévet
CoNi nanowires synthesized by heterogeneous nucleation in liquid polyol
Adv. Mater., 17, 338 (2005).
[NCO-3] N. Chakroune, G. Viau, S. Ammar, D. Veautier, L. Poul, M.M. Chehimi, C. Mangeney, F. Villain,
F. Fiévet
Acetate and thiol-capped monodisperse ruthenium nanoparticles : XPS, XAS and HRTEM studies
Langmuir, 21, 6788 (2005).
[NCO-4] D. Ung, G. Viau, F. Fiévet-Vincent, F. Herbst, V. Richard and F. Fiévet
Magnetic nanoparticles with hybrid shape,
Progress in Solid State Chemistry, 33, 137 (2005)
[NCO-5] A. El Kadib, A. Feddouli, P. Rivière, F. Delpech, M. Rivière-Baudet, A. Castel, M. Ahra, A.
Hasnaoui, F. Burgos, J. M. Manriquez, I. Chavez
Radical metalation of functional ethylenic compounds: radical autoinhibition changes the regioselectivity
Organometallics, 24, 446 (2005).
[NCO-6] A. El Kadib, S. Asgatay, F. Delpech, A. Castel, P. Rivière
Highly Selective C-Silylation of Fatty Acid Methyl Esters
Eur. J. Org. Chem., 21, 4699 (2005).
[NCO-7] E. Esponda, C. Adams, F. Burgos, I. Chavez, J. M. Manriquez, F. Delpech, A. Castel, H.
Gornitzka, M. Rivière-Baudet, P. Rivière
New Rh Derivatives of s-indacene Active in Dehydrogenative Silylation of Styrene
J. Organomet. Chem., 691, 3011 (2006).
[NCO-8] N. Boudet, H. Mutschke, C. Nayral, C. Jaeger, J.-Ph. Bernard, Th. Henning, and C. Meny
Temperature-Dependence of the Submillimeter Absorption Coefficient of Amorphous Silicate Grains
Astrophys. J., 633, 272 (2005).
[NCO-9] D. Grandjean, R. E Benfield, C. Nayral, L. Erades, K. Soulantica, A Maisonnat B. Chaudret
EXAFS and XANES study of two novel Pd doped Sn/SnOx nanomaterials
Phys. Scr., 699 (2005).
NCO/Appendix-55
[NCO-10] S.Lachaize,K Essalah,V.Montiel, L.Vendier, B.Chaudret, J-C.Barthelat and S Sabo-Etienne
Coordination modes of boranes in polyhydride ruthenium complexes: -borane versus ihydridoborate
Organometallic, 24, 2935 (2005)
2006
[NCO-11] T. Matrab, A. Yassar, G. Viau, N. Chakroune, F. Fievet, P.-C. Lacaze
pH-controlled assembled and disassembly oligothiophene linked Ru nanoparticles
Materials Letters, 60, 698 (2006).
[NCO-12] T. Matrab, A. Yassar, G. Viau, N. Chakroune, F. Fievet, P.- C. Lacaze
Synthesis and characterization of nanoheterostructures based on oligothiophene functionalized Ru
nanoparticles
Journal of Colloid and Interface Science, 296, 95 (2006).
[NCO-13] L. Erades, C. Nayral, K. Soulantica, A. Maisonnat, B. Chaudret, D. Grandjean, P. Menini, F.
Parret, Organometallic Approach for Platinum and Palladium doping of Tin and Tin Oxide
Nanoparticles
New J. Chem., 30, 1026 (2006).
[NCO-14] F. Parret, P. Menini, A. Martinez, K. Soulantica, A. Maisonnat, B. Chaudret
Improvement of micromachined SnO2 gas sensors selectivity by optimised dynamic temperature
operating mode
Sensors & Actuators B, 118, 276 (2006).
[NCO-15] S. Lachaize and S. Sabo-Etienne
-silane ruthenium complexes. The crucial role of secondary interactions
Eur. J. Inorg. Chem., 2115 (2006)
[NCO-16] E.Esponda, C.Adams, F.Burgos, I.Chavez, J.M.Manriquez, F.Delpech, A.Castel,
H.Gornitzka, M.Rivière-Baudet, P. Rivière.
New Rh Derivatives of s-indacene Active in Dehydrogenative Silylation of Styrene
J. Organomet. Chem., 691, 3011 (2006).
2007
[NCO-17]* F. Wetz, K. Soulantica, A. Falqui, M. Respaud, E. Snoeck B. Chaudret*
Hybrid Co-Au nanorods: Controlling Au Nucleation and Location
Angew. Chem. Int. Ed., 46, 7079 (2007).
[NCO-18]* F. Wetz, K. Soulantica, M. Respaud, A. Falqui, B. Chaudret
Synthesis and magnetic properties of Co nanorod superlattices
Material Science and Engineering C, 27, 1162 (2007).
[NCO-19] A. El Kadib, A. Castel, F. Delpech, P. Rivière
Silylation of triacylglycerol: an easy route to new biosiloxanes
Chem. Phys. Lipids, 148, 112 (2007).
[NCO-20] A. El Kadib, N. Katir, A. Castel, F. Delpech, P. Rivière
Hydrosilylation of unsaturated fatty acid N-phenylamides
Appl. Organomet. Chem, 21, 590 (2007)
[NCO-21] R. Menye-Biyogo, F. Delpech, A. Castel, V. Pimienta, H. Gornitzka, P. Rivière
Ruthenium-Stabilized Low Coordinate Phosphorus Atoms. p-Cymene Ligand as Reactivity Switch
Organometallics, 26, 5091(2007)
NCO/Appendix-56
[NCO-22] C. Meny, V. Gromov, N. Boudet, J.-Ph. Bernard, D. Paradis, and C. Nayral
Far-infrared to millimeter astrophysical dust emission I: A model based on physical properties of
amorphous solids
A&A, 468, 171(2007).
[NCO-23] A.V. Moskalenko, D.J. Burbridge, G.Viau and S.N. Gordeev
Electron-beam-induced welding of 3D nanoobjects from beneath
Nanotechnology, 18, 025304 (2007)
[NCO-24] D. Ung, Y. Soumare, N. Chakroune, G. Viau, M.-J. Vaulay, V. Richard, F. Fiévet
Growth of Magnetic Nanowires and Nanodumbbells in Liquid Polyol
Chem. Mater., 19, 2084 (2007)
[NCO-25] N. Lidgi-Guigui, C. Dablemont, D. Veautier, G. Viau, P. Seneor, F. Nguyen Van Dau, C.
Mangeney, A. Vaurès, C. Deranlot, A. Friederich
Grafted 2D assembly of colloidal metal nanoparticles for application as a variable capacitor
Adv. Mater., 19, 1729 (2007)
[NCO-26] P.V. Kazakevich, A.V. Simakin, G.A. Shafeev, G. Viau, Y. Soumare, F. Bozon-Verduraz
Laser-assisted shape selective fragmentation of nanoparticles
Appl. Surf. Sci., 253, 7831(2007)
[NCO-27] T. Maurer, F. Ott, G. Chaboussant, Y. Soumare, J.-Y. Piquemal, G. Viau
Magnetic nanowires as permanent magnet materials
Appl. Phys. Lett., 91, 172501 (2007).
[NCO-28] N. Bedford, C. Dablemont, G. Viau, P. Chupas, V. Petkov
3D Structure of Nanosize Catalysts by High-Energy XRD and RMC Simulations: Study of Ru
J. Phys. Chem. C, 111, 18214 (2007)
[NCO-29] S. Lachaize, A. Caballero, L. Vendier, S. Sabo-Etienne
Activation of Chlorosilanes at Ruthenium: a Route to Silyl( -Dihydrogen) Complexes
Organometallics, 26, 3713 (2007)
[NCO-30] T. A. Atesin, T. Li, S. Lachaize, W. W. Brennessel, J. J. Garcia, W. D. Jones
Experimental and Theoretical Examination of C-CN and C-H Bond Activations of Acetonitrile Using
zerovalent Nickel
J. Am. Chem. Soc., 129, 7562 (2007)
2008
[NCO-31]* E. Snoeck, C. Gatel, L.-M. Lacroix, T. Blon, S. Lachaize, J. Carrey, M. Respaud, B. Chaudret
Magnetic configurations of 30nm Iron Nanocubes Studied by Electron Holography
Nano Lett., 8, 4293 (2008)
[NCO-32]* L.-M. Lacroix, S. Lachaize, A. Falqui, T. Blon, J. Carrey, M. Respaud, F. Dumestre, C.
Amiens, O. Margeat, P. Lecante, E. Snoeck, B. Chaudret
Ultra small iron Nanoparticles: effect of size reduction on anisotropy and magnetization
J. Appl. Phys., 103, 07D521 (2008)
[NCO-33] T. A. Atesin, T. Li, S. Lachaize, J. J. Garcia, W. D. Jones
Experimental and Theoretical Examination of C-CN Bond Activation of Benzonitrile using Zerovalent
Nickel
Organometallics, 27, 3811 (2008)
NCO/Appendix-57
[NCO-34] C. Dablemont, P. Lang, C. Mangeney, J.-Y. Piquemal, V. Petkov, F. Herbst, G. Viau
Functionalization and grafting of platinum nanoparticles on alumina surfaces: FT-IR and XPS study
Langmuir, 24, 5832 (2008)
[NCO-35] V.F. Meshcheryakov, Y.K. Fetisov, A.A. Stashkevich, G. Viau
Magnetic and microwave properties of nano-composite films on the basis of Fe-Co-Ni particles of
various shapes
J. Appl. Phys., 104, 063910 (2008)
[NCO-36] D.J. Burbridge, S. Crampin, G. Viau and S. N. Gordeev
Strategies for the immobilization of nanoparticles using electron beam induced deposition
Nanotechnology, 19, 445302 (2008).
[NCO-37] A.A. Stashkevich, Y. Roussigné, P. Djemia, D. Billet, A.I. Stognij, N.N. Novitskii, G.
Wurtz, A. Zayats, G. Viau, G. Chaboussant, F. Ott, S. L.V. Lutsev, Belotelov
Brillouin light scattering observation of the transition from the superparamagnetic to the
superferromagnetic state in nanogranular (SiO2)Co films
J. Appl. Phys., 104, 093912 (2008)
[NCO-38] Y. Soumare, J.-Y. Piquemal, T. Maurer, F. Ott, G. Chaboussant, A. Falqui, G. Viau
Oriented magnetic nanowires with high coercivity
J. Mater. Chem., 18, 5696 (2008)
2009
[NCO-39]* L.-M. Lacroix, S. Lachaize, A. Falqui, M. Respaud, B. Chaudret
Iron Nanoparticles Growth in Organic Super-Structures
J. Am. Chem. Soc., 131, 549 (2009)
[NCO-40]* J.Maynadié, A.Salant, A.Falqui, M.Respaud, E.Shaviv, U.Banin, K.Soulantica*,
B.Chaudret,
Cobalt growth on the tips of CdSe nanorods
Angew. Chem. Int. Ed., 48, 1814 (2009)
[NCO-41]* L.-M.Lacroix, R.Bel Malaki, J.Carrey, S.Lachaize, G.F.Goya, B.Chaudret, M.Respaud
Magnetic hyperthermia in single-domain monodisperse FeCo nanoparticles: Evidence for StonerWohlfarth behaviour and large losses
J. Appl. Phys., 105, 023911 (2009)
[NCO-42] C.Adams, C.Morales-Verdejo, V.Morales, D.MacLeod-Carey, J.M.Manríquez, I.Chávez,
A.Muñoz-Castro, F.Delpech, A.Castel, H.Gornitzka, M.Rivière-Baudet, P.Rivière, E.Molins
Heterobinuclear s-Indacene Rhodium Complexes: Synthesis and Characterization
Eur. J. Inorg. Chem., 784 (2009)
[NCO-43] L-C.Pop, N.Katir, A.Castel, L.Silaghi-Dumitrescu, F.Delpech, I.Silaghi-Dumitrescu,
H.Gornitzka, D.MacLeod-Carey, N.Saffon
N,N’ and N,O chelated phosphenium cations containing aminotroponiminate or aminotroponate units
J. Organomet. Chem. 694, 1562 (2009)
[NCO-44] A.A. Stashkevich, Y. Roussigne, A.I. Stognij, N.I. Novitskii, G. Wurtz, A.V. Zayats, G.
Viau, G. Chaboussant, F. Ott, L.V. Lutsev, P. Djemia, M.P. Kostylev, V. Belotelov
Magnetic excitations in (SiO2)Co nano-composite films: Brillouin light scattering study
J. Magn. Magn. Mater., 321, 876 (2009)
NCO/Appendix-58
[NCO-45] G. Viau, C. Garcia, T. Maurer, G. Chaboussant, F. Ott, Y. Soumare, J.-Y. Piquemal
Highly crystalline cobalt nanowires with high coercivity prepared by soft chemistry
Phys. Status Solidi A, 206, 663 (2009)
[NCO-46] F. Ott, T. Maurer, G. Chaboussant, Y. Soumare, J.-Y. Piquemal, G. Viau
Effects of the shape of elongated magnetic particles on the coercive field
J. Appl. Phys., 105, 013915 (2009)
[NCO-47] R. Boubekri, Z. Beji, K. Elkabous, F. Herbst, G. Viau, S. Ammar, F. Fievet, H.J. von
Bardeleben, A. Mauger
Annealing Effects on Zn(Co)O: From Para- to Ferromagnetic Behavior
Chem. Mater., 21, 843 (2009)
[NCO-48] Y. Soumare, C. Garcia, T. Maurer, G. Chaboussant, F. Ott, F. Fiévet, J.-Y. Piquemal, G. Viau
Kinetically controlled synthesis of cobalt nanorods with high magnetic coercivity
Adv. Funct. Mater., 19, 1971 (2009) Published Online: Apr 22 2009 DOI: 10.1002/adfm.200800822.
[NCO-49]* L. Ressier, E. Palleau, C. Garcia, G. Viau and B. Viallet
How to control AFM nanoxerography for the templated monolayered assembly of 2 nm colloidal gold
nanoparticles
IEEE Nanotech., 8, 487 (2009).
[NCO-50] N. El Hawi, C. Nayral, F. Delpech, Y. Coppel, A. Cornejo, A. Castel, B. Chaudret
Silica nanoparticles grown and stabilized in organic non-alcoholic media
Langmuir, 25, 7540 (2009).
[NCO-51]* K. Soulantica, F. Wetz, J. Maynadié, A. Falqui, R. Tan, T. Blon, B. Chaudret, and M.
Respaud.
Magnetism of Single-Crystalline Co Nanorods
Appl. Phys. Lett., accepted.
[NCO-52] E. Stratakis, M. Barbeoroglou, C. Fotakis, G. Viau, C. Garcia, G. A. Shafeev
Generation of Al nanoparticles via laser ablation of a bulk Al in liquids with short laser pulses
Optics Express 17, 12650 (2009).
OS
2006
[NCO-53] P. Toneguzzo, G. Viau and F. Fiévet,
Monodisperse ferromagnetic metal particles : synthesis by chemical routes, size control and magnetic
characterizations
in Handbook of Advanced magnetic materials, Editors Y. Liu, D.J. Sellmyer, D. Shindo, Springer, New
York, (2006) vol.3 : Fabrication and Processing, pp. 217-266.
AP
2007
[NCO-54] F. Delpech, C. Nayral, N. El Hawi
Patent : Procédé de fabrication de nanoparticules métalliques enrobées de silice: French Patent 07/08107,
date de dépôt 19 nov 2007. Extension PCT 2008/052076 date de dépôt 18 nov 2008.
NCO/Appendix-59
INV
2005
[NCO-55] Magnetic Nanoparticles with Hybrid Shape
EMRS Spring Meeting 2005, may 31– june 04, Strasbourg
G. Viau
Invited Communication
2006
[NCO-56] Co based nano-objects; shape, composition and organisation impact on their magnetic
properties
7 November 2006, Max Planck Institute for Metals Research, Stuttgart, Allemagne.
K. Soulantica, Invited lecture
[NCO-57] Spheres, fils et nanoparticules de formes hybrides
MATERIAUX 2006, Dijon, France, 2006, November, 13-18
G. Viau
Invited Keynote
2008
[NCO-58] Co containing Nano-Objects
Nanoscience with Nanocrystals (NANAX 3) Lecce (Italy) on May 21-23 2008
[NCO-59] Co nanocrystals: Synthesis and Applications
2nd Workshop on Current Trends in Nanoscopic and Mesoscopic Magnetism, Delphi (Greece) 1-5
September 2008
[NCO-60] Characterization of intermediate solid phases in the polyol process : the case of cobalt
alkoxides
French-Japanese Symposium on the polyol process (Paris, France March, 21/22)
G. Viau, Invited lecture
[NCO-61] Nouvelles avancées dans le domaine des nanoparticules magnétiques
Séminaire général de l‘Institut des NanoSciences de Paris (March 20th, 2008)
G. Viau, Séminaire invité
2009
[NCO-62] Elaboration de nanoparticules de fer. Application à l‘hyperthermie
Journées Surfaces-Interfaces (Nancy, France, 27-29 Janv.)
S. Lachaize, conférence invitée
[NCO-63] Croissance de nanofils métalliques en phase liquide
Laboratoire de Chimie et Physique Quantique (09/07/2009)
G. Viau, Séminaire invité
ACTI
2005
[NCO-64] ―New micro machined gas sensors combined with intelligent signal processing allowing fast gas
identification after power-up‖
M. Baumbach, A. Sossong, H. Delprat, K. Soulantica, A. Schütze, H. Borrel, A. Maisonnat, B. Chaudret
NCO/Appendix-60
12th Int. Trade fair for Sensorics, Measuring and Testing Technologies, 10-12 mai 2005, Nuremberg
(Allemagne), IEEE Sensors, proceedings 2, 91-96, 2005
2008
[NCO-65] M. Tourbin, Y. Liu, S. Lachaize, P. Guiraud
Removal of nanoparticles from liquids wastes: a review on coagulation and flotation processes and the
development of characterization techniques, IWA Conference on Industrial waste water treatment systems,
Amsterdam, Pays-Bas, 2-3/10/2008 – Prix du meilleur poster
2009
Removal of the nanoparticles from the industrial and domestic wastewater, 8th World Congress of
Chemical Engineering, Montreal, Canada, 23-27/08/2009, acceptée
[NCO-67] Y. Liu, M. Tourbin, S. Lachaize, P. Guiraud
Removal of nanoparticles from liquids wastes: a state of art and the development of characterization
techniques, Micropol & Ecohazard 2009, San Francisco, Floride, 8-10/06/2009
Coagulation and flotation preliminary experiments for the development of a treatment process for the
removal of nanoparticles from liquids wastes, Micropol & Ecohazard 2009, San Francisco, Floride, 810/06/2009
Removal of nanoparticles from liquids wastes: a state of art and the development of characterization
techniques, Nanoparticle and Particle Separation 2009, Duke University, Durham, 3-6/06/2009
Coagulation and flotation preliminary experiments for the development of a treatment process for the
removal of nanoparticles from liquids wastes, Nanoparticle and Particle Separation 2009, Duke
University, Durham, 3-6/06/2009
ACTN
2009
Coagulation of silica nanoparticules by CTAB, SFGP 2009, Marseille, France, 14-16/10/2009, acceptée
[NCO-72] M. Tourbin, Y. Liu, L. Lopez, S. Lachaize, P. Guiraud
Procédé innovant pour l‘élimination de nanoparticules polluant les milieux liquides, Salon Pollutec, Lyon,
France, 2-5/12/2009 - Prix des Techniques Innovantes
COM
2005
[NCO-73] ―Development of a new micromachined metal oxide gas sensor: application to hazardous gas
detection for automotive air quality control‖
P. Menini, H. Chalabi, E. Scheid, F. Parret, A. Martinez, V. Conedera, L. Salvagnac, S. Assie-Souleille, B.
Chaudret, A. Maisonnat, K. Soulantica, P. Fau, K. Aguir
SENSACT 2005, 7-8 décembre 2005, Paris, oral presentation.
NCO/Appendix-61
2006
[NCO-74] Auto-organisation en super-réseaux de nano-bâtonnets de cobalt, étude de leurs propriétés
magnétiques
F. Wetz, K. Soulantica, M. Respaud, B. Chaudret
Journée de la Matière Condensée, 28 août-1 september 2006, Toulouse, oral presentation.
[NCO-75] Auto-organisation en super-réseaux de nano-bâtonnets de cobalt, de forme contrôlée
F.Wetz, K. Soulantica, M. Respaud, B. Chaudret
Matériaux 2006 13-17 Novembre, Dijon, oral presentation.
[NCO-76] Synthesis and magnetic properties of Co nanorod superlattices
MRS Fall meeting, November 27-December 1, 2006 Boston USA, oral presentation.
[NCO-77] Synthèse et caractérisation de nanoparticules de fer pour l‘hyperthermie
L.-M. Lacroix, S. Lachaize, J. Carrey, B. Chaudret
Matériaux 2006 (Dijon, France, Nov.)
[NCO-78] Nano-oncologie : des nanoparticules pour l‘hyperthermie
L.-M. Lacroix, N. El-Hawi, F. Delpech, S. Lachaize, C. Nayral, J. Carrey, B. Chaudret
10èmes Journées de la Matière Condensée (Toulouse, France, Août)
[NCO-79] L‘hyperthermie magnétique ou comment des nanoparticules de fer pourraient être utilisées
pour le traitement de tumeurs
L.-M. Lacroix, N. El-Hawi, F. Delpech, C. Nayral, S. Lachaize, J. Carrey, B. Chaudret
Journée SFC Jeunes chercheurs (Toulouse, France, Avril) - Prix de la meilleure présentation
2007
[NCO-80] New Micro Machined Gas Sensors Combined with Intelligent Signal Processing Allowing
Fast Gas Identification After Power-Up
M. Baumbach, A. Sossong, A. Schütze, H. Delprat, H. Borrel, K. Soulantica, A. Maisonnat, B.
Chaudret
Sensor + test, 22-24 Mai 2007, Nürnberg, Germany, oral presentation
[NCO-81] Synthesis of Multifunctional Co-Au Heterostructured Nanorods
Fabienne Wetz, Katerina Soulantica, Andrea Falqui, Marc Respaud, Etienne Snoeck and Bruno
Chaudret, MRS Fall meeting, November 23-30, 2007 Boston USA, oral presentation.
[NCO-82] Synthèse et propriétés magnétiques des nanoparticules anisotropes
9èmes journées francophones des jeunes physico-chimistes, 2-5 Octobre 2007, Maubuisson (Gironde),
France.
Y.Soumare, G. Viau, J-Y. Piquemal, T. Maurer, F. Ott, G. Chaboussant
[NCO-83] Iron nanoparticles: size and shape control, self assembly and magnetic studies
L.-M. Lacroix, S. Lachaize, A. Falqui, J. Carrey, M. Respaud, E. Snoeck, B. Chaudret
52nd Magnetism and Magnetic Materials (Tampa, USA, Nov.)
[NCO-84] Synthèse de nanoparticules de fer : effet des ligands sur le contrôle de la taille et de la forme.
L.-M. Lacroix, S. Lachaize, A. Falqui, M. Respaud, B. Chaudret
Journée Chimie-Biologie (Toulouse, France, Mai)
NCO/Appendix-62
2008
[NCO-85] Synthesis and Magnetic Properties of Cobalt Nanowires with High Coercivity
G. Viau, C. Garcia, T. Maurer, G. Chaboussant, F. Ott, Y. Soumare, J.-Y. Piquemal
International Workshop on Magnetic Wires, May, 9-10th 2008, Zumaia, Spain
[NCO-86] An easy procedure for the preparation of ferromagnetic cobalt nanorods via the polyol process:
towards the formation of permanent magnets
Particles 2008, May 10th-13th 2008, Orlando, USA
Y. Soumare, J.-Y. Piquemal, G. Viau, T. Maurer, F. Ott, G. Chaboussant et F. Fiévet.
[NCO-87] Role of the antiferromagnetic fluctuations in the exchange bias mechanism. Study on magnetic
nanowires.
JEMS 08, Dublin September 13th-19th 2008
T. Maurer, G. Chaboussant, F. Ott, Y. Soumare, J-Y. Piquemal and G. Viau
[NCO-88] Coercivity drop in exchange biased Co nanowires induced by antiferromagnetic fluctuations
EPS-CMD, Rome August 25th-29th 2008
T. Maurer, F. Ott, G. Chaboussant, Y. Soumare, J-Y. Piquemal and G. Viau
[NCO-89] Cobalt Rods and Dumbbells : Shape Control, Assembly and Hard Magnetic Properties
G. Viau, C. Garcia, Y. Soumare, J.-Y. Piquemal, T. Maurer, G. Chaboussant, F. Ott
2008 MRS Fall Meeting , December, 1-5th 2008, Boston, USA
[NCO-90] Cobalt growth on the tips of CdSe nanorods
Jérôme Maynadié, Asaf Salant, Andrea Falqui, Marc Respaud, Ehud Shaviv, Uri Banin, Katerina
Soulantica and Bruno Chaudret, NanoSWEC 3-5 November 2008 Bordeaux-France, oral presentation
[NCO-91] Nanoparticules de fer pour l’hyperthermie : synthèse, propriétés magnétiques, holographie.
L.-M. Lacroix, S. Lachaize, J. Carrey, B. Chaudret, T. Blon, C. Gatel, E. Snoeck, M. Respaud
12ème Colloque Louis Néel (La Grande-Motte, France, Sept.)
2009
[NCO-92] Co-CdSe heterostructures
Katerina Soulantica, Jérôme Maynadié, Asaf Salant, Andrea Falqui, Marc Respaud, Ehud Shaviv, Uri
Banin, Bruno Chaudret, Synthesis and Surface Modification of Colloids, 18-20 February 2009, Vigo,
Spain, oral presentation).
AFF
2006
[NCO-93] Synthesis and magnetic properties of Co nanorod superlattices
E-MRS 2006, May 29th – June 2nd 2006, Nice, (présentation par affiche).
[NCO-94] Rôle de la concentration d‘acide sur le contrôle de la taille de nanoparticules monodisperses de
fer
L.-M. Lacroix, N. El-Hawi, J. Carrey, B. Chaudret, S. Lachaize
Galerne 06 (Bollwiller, France, Sept.)
[NCO-95] Synthèse de nanoparticules de fer à forte aimantation : approche organométallique
L.-M. Lacroix, N. El-Hawi, S. Lachaize, B. Chaudret
Journée 2006 de la Division de Chimie de Coordination SFC (Toulouse, France, Avril)
NCO/Appendix-63
2007
[NCO-96] Etude de nano-objets magnétiques Co1-xNix anisotropes par diffusion de neutrons polarisés.
T. Maurer, G. Chaboussant, F. Ott, G. Viau, Y. Soumare and J-Y. Piquemal.
Colloque Louis néel, Lyon March 14th-16th 2007
[NCO-97] Nanoparticules de silice : synthèse et enrobage de particules de fer
N. El-Hawi, L-M Lacroix, F. Delpech, C. Nayral, S. Lachaize, B. Chaudret
Nano-objets aux interfaces, May 28th- June 1st 2007, Lacanau, France
[NCO-98] Optimisation de particules magnétiques de fer pour l‘hyperthermie
L.-M. Lacroix, J. Carrey, S. Lachaize, A. Falqui, M. Respaud, B. Chaudret
11ème Colloque Louis Néel (Lyon, France, Mars) - Prix du meilleur poster
2008
[NCO-99] Synthesis and Magnetic Properties of Cobalt Nanowires with High Coercivity
G. Viau, Y. Soumare, J.-Y. Piquemal, T. Maurer, F. Ott, G. Chaboussant
Intermag May, 5-8th 2008, Madrid, Spain
[NCO-100] Rôle des fluctuations antiferromagnétiques dans le phénomène d‘exchange bias. Etude sur
des nanofils magnétiques. T. Maurer, G. Chaboussant, F. Ott, , Y. Soumare, J-Y. Piquemal and G.
Viau Colloque Louis Néel, La Grande Motte October 1st-3rd 2008
[NCO-101] Etude de nano-objets magnétiques Co1-xNix anisotropes par diffusion de neutrons polarisés
T. Maurer, G. Chaboussant, F. Ott, Y. Soumare and G. Viau
Journées de la diffusion neutroniques, Albé May 28th-30th 2008
[NCO-102] Far-infrared and millimeter Galactic dust emission : model and predictions
C. Meny, D. Paradis, V. Gromov, J.-P. Bernard, K. Demyk, C. Nayral
Cosmic Dust Near and Far, September, 8-12th 2008, Heidelberg, Germany
[NCO-103] A novel method of synthesis of silica nanoparticles in a non-alcoholic organic medium
N. El-Hawi, F. Delpech, C. Nayral, B. Chaudret Nanospain, April, 14-18th 2008, Braga, Portugal
[NCO-104] Nanocristaux InP/MS (M = Zn, Cd) : synthèse, chimie de surface et luminescence
A. Cros-Gagneux, A. Cornejo, F. Delpech, C. Nayral, B. Chaudret
GDR Nanoalliage, June, 9-11th 2008, Oléron, France
[NCO-105] Etude de nanoparticules de FeCo en hyperthermie magnétique
L.-M. Lacroix, R. Bel-Malaki, J. Carrey, S. Benderbous, S. Lachaize, M. Respaud, B. Chaudret
12ème Colloque Louis Néel (La Grande-Motte, France, Sept.) - Prix du meilleur poster
[NCO-106] Iron nanoparticles synthesis: control of the growth environment anisotropy
L.-M. Lacroix, S. Lachaize, J. Carrey, T. Blon, A. Falqui, M. Respaud, E. Snoeck, B. Chaudret
NANAX 03 (Lecce, Italie, Mai)
2009
[NCO-107] InP/MS core/shell nanocrystals (M = Zn, Cd) : synthesis, surface chemistry and
luminescence A. Cros-Gagneux, A. Cornejo, F. Delpech, C. Nayral, B. Chaudret
Nanospain, March, 9-12th 2009, Zaragosse, Spain
[NCO-108] Silica coating of FeCo magnetic nanoparticles in non-alcoholic media
A. Cornejo, N. El-Hawi, F. Delpech, C. Nayral, B. Chaudret
Nanospain, March, 9-12th 2009, Zaragosse, Spain
NCO/Appendix-64
NM
« Nanomagnetism » group
Equipe « Nanomagnétisme »
ACL
2005
[NM-1] T. Ould.Ely, J.H. Thurston, A. Kumar, M. Respaud, W. Guo, C. Weidenthaler, K.H. Whitmire.
Synthesis and characterization of Nickel-Bismuth bimetallic nanoparticles, and nanowires.
Chem. Matter. 17, 4750 (2005).
[NM-2] C. Frontera, J.L. Garcia Munoz, M.A.G. Aranda, M. Hervieu, C. Ritter, A. Calleja, X.G.
Capdevilla, M. Respaud.
Magnetism in the low-doping regime (x< 0.5) of Bi1-xSrxMnO3 perovskites.
J. Appl. Phys. 97, 10C105 partII (2005).
[NM-3] J.L. Garcia Munoz, C. Frontera, M. Respaud, M. Giot, C. Ritter, A. Calleja, X.G. Capdevilla.
Magnetic properties of Bi0.75Sr0.25MnO3 (x approximate to 2/8, TCO = 600K) : Ferromagnetism and charge
order.
Phys. Rev. B 72, 54432 (2005).
[NM-4] C. Amiens, B.Chaudret, M. Respaud, P. Lecante.
Organometallic synthesis of magnetic nano-objects with controlled physical properties.
Actualité chimique, 19-27 suppl. 283, FEB (2005).
[NM-5] C. Desvaux, C.Amiens, P. Fejes, P. Renaud, M. Respaud, P. Lecante, E. Snoeck, B.Chaudret.
Multi-Millimeter Large Super-Lattices of Air-Stable Iron-Cobalt Nanoparticles.
Nature Materials 4, 750 (2005).
[NM-6] H Coffin, C. Bonafos, S. Schamm, M. Carrada, N. Cherkashin, G. Ben Assayag, P. Dimitrakis,
P. Normand, M. Respaud, A. Claverie.
Si nanocrystals by ultra-low energy ion implantation for non-volatile memory applications.
Materials Science and Engineering B-Solid State Materials for Advanced Technology 124, 499 (2005).
2006
[NM-7] H Coffin, C. Bonafos, S. Schamm, N. Cherkashin, G. Ben Assayag, A. Claverie, M. Respaud,
P. Dimitrakis, P. Normand.
Oxidation of Si nanocrystals fabricated by ultralow-energy ion implantation in thin SiO2 layers.
J. Appl. Phys. 99, 44302 (2006).
[NM-8] T. Pellegrino, A. Fiore, E. Carlino, C. Giannini, P. D. Cozzoli, G. Ciccarella, M. Respaud,
L. Palmirotta, R. Cingolani, L. Manna.
Heterodimers Based on CoPt3-Au Nanocrystals with Tunable Domain Size.
J. Am. Chem. Soc. 128, 6690 (2006).
[NM-9] J. L. Garcia-Munoz, C. Frontera, M. Hervieu, M. Giot, M. Respaud, A. Calleja, X. G. Capdevilla.
Investigating ferromagnetism and charge order in Bi1-xSrxMnO3 (x<0.3) ceramic oxides.
Boletin de la Sociedad Española de Cerámica y Vidrio, 45, 233 (2006).
NM/Appendix - 65
2007
[NM-10] O. Margeat, D. Ciuculescu, P. Lecante, M. Respaud, C. Amiens, B. Chaudret.
NiFe nanoparticles: A soft magnetic material?
SMALL 3, 451, (2007).
[NM-11] D.Ciuculescu, C.Amiens, M.Respaud, A.Falqui, P.Lecante, RE Benfield, L.Jiang, K.Fauth, B
Chaudret.
One-pot synthesis of core - Shell FeRh nanoparticles
Chemistry of Materials 19, 4624 (2007).
[NM-12] F. Wetz, K. Soulantica, A. Falqui, M. Respaud, E. Snoeck, B. Chaudret.
Hybrid Co-Au nanorods: Controlling Au nucleation and location
Angewandte Chemie – International Edition 46, 7079 (2007).
[NM-13] J. Carrey, M. L. Kahn, S. Sanchez, B. Chaudret, M. Respaud.
Synthesis and transport properties of ZnO nanorods and nanoparticles
Eur. Phys. J. Appl. Phys. 40, 71 (2007).
[NM-14] R. P. Tan, J.Carrey, C. Desvaux, J. Grisolia, P. Renaud, B. Chaudret, M. Respaud.
Transport in magnetic nanoparticle superlattices : Coulomb blockade, hysteresis and switching induced
by a magnetic field.
Phys. Rev. Lett. 99, 176805 (2007).
[NM-15] D. Ciuculescu, C. Amiens, M. Respaud, P. Lecante, A. Falqui, B. Chaudret.
Synthesis and characterisation of FeRh nanoparticles.
Modern Physics Letters B, 21 1153 (2007).
[NM-16] T. Blon, M. Mátéfi-Tempfli, S. Mátéfi-Tempfli, L. Piraux, S. Fusil, R. Guillemet, K.
Bouzehouane, C. Deranlot, and V. Cros,
Spin momentum transfer effects observed in electrodeposited Co/Cu/Co nanowires
J. Appl. Phys. 102, 103906 (2007)
2008
[NM-17] J. Carrey, H. Carrère, M. L. Kahn, B. Chaudret, X. Marie, M. Respaud.
Photoconductivity of self-assembled ZnO nanoparticles synthesised by organometallic chemistry.
Semicond. Sci. Technol., 23, 25003 (2008).
[NM-18] R. P. Tan, J. Carrey, M. Respaud, C. Desvaux, P. Renaud, B. Chaudret.
3000 % high-field magnetoresistance in super-lattices of CoFe nanoparticles
J. Magn. Magn. Mat., 320, 55 (2008).
[NM-19] R. P. Tan, J. Carrey, M. Respaud.
Voltage and temperature dependence of high-field magnetoresistance in arrays of magnetic
nanoparticles.
J. Appl. Phys. 104, 023908 (2008).
[NM-20] A. Glaria, M.L. Khan, A Falqui, P. Lecante, V. Collière, M. Respaud, B. Chaudret.
An organometallic approach for very small maghemite nanoparticles: Synthesis, characterization, and
magnetic properties.
CHEMPHYSCHEM, 9, 2035 (2008).
NM/Appendix - 66
[NM-21] L.M. Lacroix, J. Carrey, M. Respaud.
A frequency-adjustable electromagnet for hyperthermia measurements on magnetic nanoparticles.
Rev. Scientific Instrument 79, 093909 (2008).
[NM-22] E. Snoeck, C. Gatel, L.M. Lacroix, T. Blon, S. Lachaize, J. Carrey, M. Respaud, B. Chaudret.
Magnetic configuration of 30nm iron nanocubes studied by electron holography.
NANOLETTERS, 8, 4293 (2008).
[NM-23] L-M. Lacroix, S. Lachaize, A. Falqui, T. Blon, J. Carrey, M. Respaud, F. Dumestre, C. Amiens,
O. Margeat, B. Chaudret, P. Lecante, E. Snoeck.
Ultra small iron nanoparticles : effect of size reduction on anisotropy and magnetization.
J. Appl. Phys. 103, 07D521 (2008).
[NM-24] R. P. Tan, J. Carrey, M. Respaud, C. Desvaux, P. Renaud, B. Chaudret.
High-field and low field magnetoresistance of CoFe nanoparticles elaborated by organometallic chemistry.
J. Appl. Phys., 320, 07F317 (2008).
[NM-25] M. Munoz-Navia, J. Dorantes-Dávila, D. Zitoun, C. Amiens, B. Chaudret, M-J. Casanove, P.
Lecante,
N. Jaouen, A. Rogalev, M. Respaud, G. M. Pastor.
Magnetic properties of CoNRhM nanoparticles: experiment and theory
Faraday Discussions, 138, 181 (2008).
[NM-26] J. De La Torre Medina, M. Darques, T. Blon, L. Piraux and A. Encinas,
Effects of layering on the magnetostatic interactions in microstructures of CoxCu1−x/Cu nanowires
Phys. Rev. B 77, 014417 (2008).
2009
[NM-27] L.M Lacroix, S. Lachaize, A. Falqui, M. Respaud, B. Chaudret.
Iron nanoparticles growth in organic super-structures.
J. Am. Chem. Soc., 131, 549 (2009).
[NM-28] J. Maynadié, A. Salant, A. Falqui, M. Respaud, E. Shaviv, K. Soulantika, B. Chaudret.
Cobalt growth on the tips of CdSe nanorods.
Angewandte, 48, 1814 (2009).
[NM-29] L.-M. Lacroix, R. Bel-Malaki, J. Carrey, S. Lachaize, G. F. Goya, B. Chaudret, M. Respaud.
Hyperthermia properties of single-domain monodisperse FeCo nanoparticles: evidence for StonerWohlfarth behavior and large losses.
J. Appl. Phys. 105, 023911 (2009).
[NM-30] R. P. Tan, J. Carrey, C. Desvaux, P. Renaud, B. Chaudret, M. Respaud.
Magnetoresistance and collective Coulomb blockade in super-lattices of CoFe nanoparticles.
Phys Rev B, sous presse (2009).
INV
2007
R.P. Tan, J. Carrey, C. Desvaux, M. Respaud, J. Grisolia, P. Renaud, B. Chaudret.
Collective transport and magnetoresistance in magnetic nanoparticle supercristals.
10th Joint MMM/Intermag Conference, Baltimore (USA), 7-11 Janvier 2007
NM/Appendix - 67
ACTI
2005
H Coffin, C. Bonafos, S. Schamm, M. Carrada, N. Cherkashin, G. Ben Assayag, P. Dimitrakis, P.
Normand, M. Respaud, A. Claverie.
European Material Research Society, EMRS-05, juin 2005, Strasbourg.
2006
D. Ciuculescu, C. Amiens, M. Respaud, P. Lecante, A. Falqui, B. Chaudret.
International Summer School and 4th Workshop on "Synthesis and Orbital Magnetism of Core-Shell
Nanoparticles" Thessaloniki, Greece, 26-29 September 2006
Modern Physics Letters B, 21, 1153 (2007).
2007
M Munoz-Navia, J Dorantes-Dávila, D Zitoun, C Amiens, B Chaudret, M-J Casanove, P Lecante, N
Jaouen, A Rogalev, M Respaud, G M Pastor.
Faraday Discussions 138, 3-5 septembre 2007, From theory to Applications, University of
Birmingham, UK.
2008
L-M. Lacroix, S. Lachaize, A. Falqui, T. Blon, J. Carrey, M. Respaud, F. Dumestre, C. Amiens, O.
Margeat, B. Chaudret, P. Lecante, E. Snoeck,
MMM Conference, Tampa (USA), 5-9 November 2007.
J. Appl. Phys. 103, 07D521 (2008).
High-field and low field magnetoresistance of CoFe nanoparticles elaborated by organometallic
chemistry.
R. P. Tan, J. Carrey, M. Respaud, C. Desvaux, P. Renaud, B. Chaudret,
J. Appl. Phys., 320, 07F317 (2008).
COM
2005
NM/Appendix - 68
2006
D. Ciuculescu, C. Amiens, M. Respaud, P. Lecante, A. Falqui, B. Chaudret.
International Summer School and 4th Workshop on "Synthesis and Orbital Magnetism of Core-Shell
Nanoparticles" Thessaloniki, Greece, 26-29 September 2006
Modern Physics Letters B, 21, 1153 (2007).
R.P. Tan, C. Desvaux, J. Carrey, J. Grisolia, M. Respaud, P. Renaud, B. Chaudret.
Magnetotransport properties of FeCo superlattices.
European Material Research Society, EMRS-06, juin 2006, Nice.
J. Carrey, M. L. Kahn, S. Sanchez, B. Chaudret, M. Respaud.
Synthesis and transport properties of ZnO nanorods and nanoparticles assemblies.
European Material Research Society, EMRS-06, juin 2004, Nice.
R.P. Tan, C. Desvaux, J. Carrey, B. Chaudret, J. Grisolia, P. Renaud, M. Respaud.
Blocage de Coulomb et magnétorésistance dans un super-cristal de nanoparticules de FeCo.
10ème Journées de la Matière Condensée, Toulouse, 28 août-1er Septembre 2006.
L.-M. Lacroix, N. El-Hawi, S. Lachaize, C. Nayral, F. Delpech, M. Respaud, J. Carrey, B. Chaudret.
Des particules magnétiques pour l’hyperthermie : modèle de Néel.
Matériaux 2006, Dijon, 13 -19 novembre 2006
C. Desvaux, R.P. Tan, J. Carrey, M. Respaud, P. Renaud, B. Chaudret.
Very large FeCo nanoparticles super-lattices : magnetic and transport properties.
Material Research Society Fall Meeting, Boston (U.S.A.), 27 novembre-1er décembre 2006
2007
M Munoz-Navia, J Dorantes-Dávila, D Zitoun, C Amiens, B Chaudret, M-J Casanove, P Lecante, N
Jaouen, A Rogalev, M Respaud, G M Pastor.
Faraday Discussions 138, 3-5 septembre 2007, From theory to Applications, University of Birmingham,
UK.
G. M. Pastor, M. Respaud, J. Dorantes-Davila, B. Chaudret, M.-J. Casanove, C. Amiens, O. Margeat, M.
Muñoz-Navia, D. Zitoun, P. Lecante.
Tuning the Magnetic Moments and Magnetic Anisotropy of FeNi and CoRh Nanoparticles: Experiment
and Theory.
MRS spring meeting, 9-13 avril 2007, San Francisco (USA).
Proceeding de la conference, sous presse.
R.P. Tan, C. Desvaux, J. Carrey, P. Renaud, B. Chaudret, M. Respaud.
Blocage de Coulomb et magnétorésistance de super-réseaux de nanoparticules de FeCo.
11ème Colloque Louis Néel "Couches minces et nanostructures magnétiques", Lyon, 14-16 mars 2007.
Présentation orale.
J. Carrey, H. Carrère, M. Kahn, B. Chaudret, X. Marie, M. Respaud.
Photoconductivity in the UV range of ZnO nanoparticles synthesized by organometallic chemistry.
EMRS Spring meeting 2007, Strasbourg, 28 mai-1er juin 2007.
NM/Appendix - 69
F. Wetz, K. Soulantica, A. Falqui, M. Respaud, E. Snoeck, B. Chaudret.
Synthesis of multifunctional Co-Au heterostructured nanorods.
MRS Fall Meeting, 26-30 novembre 2007, Boston (USA).
2008
Margeat, B. Chaudret, P. Lecante, E. Snoeck,
J. Appl. Phys. 103, 07D521 (2008).
R. P. Tan, J. Carrey, M. Respaud, C. Desvaux, P. Renaud, B. Chaudret,
High-field and low field magnetoresistance of CoFe nanoparticles elaborated by organometallic
chemistry.
J. Appl. Phys., 320, 07F317 (2008).
L-M. Lacroix, S. Lachaize, J. Carrey, T. Blon, A. Falqui, M. Respaud, B. Chaudret, C. Gatel, E.
Snoeck, B. Chaudret.
Nanoparticules de fer (0) pour l’hyperthermie : synthèse, propriétés magnétiques, holographie.
12° colloque Louis Néel, La Grande Motte, 01-03 Octobre 08.
B.Lassagne, M.Respaud.
Measuring individual magnetic nanoparticules with a carbon nanotube mechanical nanoresonator.
MSNOW Meeting 2008, 26-28 Novembre 2008, Nancy, France.
AFF
2005
R.P. Tan, C. Desvaux, J. Carrey, M. Respaud, J. Grisolia, B. Chaudret, P. Renaud.
Propriétés de conduction et de magnétorésistance de super-cristaux de CoFe stabilisés par des ligands
organiques.
Nano-Objets aux Interfaces 2005, Montpellier, 22-25 novembre 2005
2007
L.-M. Lacroix, N. El-Hawi, J. Carrey, S. Lachaize, F. Delpech, C. Nayral, B. Chaudret, M. Respaud.
Nano-oncologie : optimisation de particules magnétiques pour l'hyperthermie.
11ème Colloque Louis Néel "Couches minces et nanostructures magnétiques", Lyon, 14-16 mars 2007.
2008
B. Lassagne, M. Respaud.
Vers la Mesure de nanoparticules magnétiques individuelles
Conférence Louis Néel 2008, La Grande Motte, 1-3 Octobre.
NM/Appendix - 70
R.P. Tan, J. Carrey, C. Desvaux, L.M. Lacroix, P. Renaud, M. Respaud, B. Chaudret.
Mesures de magnétotransport dans des super-réseaux de nanoparticules de FeCo élaborés par synthèse
organométallique.
R. Bel Malaki, L.M. Lacroix, J. Carrey, S. Benderbous, M. Respaud, B. Chaudret.
Etude de nanoparticules de FeCo en hyperthermie magnétique.
Organisation of conferences
• Contribution à l’organisation des JMC10 à Toulouse (28 août-1 septembre 2006), Responsable «
recherche de financement industriels et relation avec les sponsors» pour les Journées de la Matière
Condensée, 10ème édition (Toulouse 1er août-2 septembre 2006). J. Carrey.
Organisées par la SFP, les JMC sont devenues la conférence nationale de physique la plus
importante. Elles ont rassemblées à Toulouse cette année plus de 600 personnes. Le faible tarif demandé
aux doctorants est rendu possible grâce à une recherche active de sponsors et d'exposants industriels.
C'était mon rôle au sein du comité d'organisation des JMC10. Mon implication importante dans cette
activité, qui a duré environ un an et demi, a permis le soutien des JMC10 par 12 industriels pour une
somme de 16000 Euros.
• Organisation du mini-colloque "Matériaux, nanostructures, et mécanismes innovants en électronique
de spin" lors des JMC10 (Toulouse, 28 août-1 septembre 2006) - J. Carrey.
• Molmat 2008, Toulouse, 8-11 juillet 2008 - M. Respaud.
Ce colloque est le rendez-vous principal de la communauté internationale du magnétisme des
systèmes à transition de spin. Il a été organisé à Toulouse en juillet 2008, et a réuni plus de 200 personnes
pour cette édition. Notre contribution principale a été dans l‘organisation durant le colloque.
• Organisation du Colloque Louis Néel, La Grande-Motte, 1-3 octobre 2008. T. Blon, J. Carrey, M.
Respaud.
Ce colloque est le rendez-vous principal de la communauté française du magnétisme. Il a été
organisé par ma communauté toulousaine travaillant dans le domaine du nanomagnétisme, et a réuni plus
de 200 personnes pour cette édition. Notre contribution principale a été dans la préparation et
l‘organisation durant le colloque.
NM/Appendix - 71
Some articles appear both in the NM and NCO list of publications. The correspondence
table is given below
[NM-12] = [NCO-17]
F. Wetz, K. Soulantica, A. Falqui, M. Respaud, E. Snoeck, B. Chaudret.
Hybrid Co-Au nanorods: Controlling Au nucleation and location
Angewandte Chemie – International Edition 46, 7079 (2007).
[NM-22] = [NCO-31]
E. Snoeck, C. Gatel, L.M. Lacroix, T. Blon, S. Lachaize, J. Carrey, M. Respaud, B. Chaudret.
Magnetic configuration of 30nm iron nanocubes studied by electron holography.
NANOLETTERS, 8, 4293 (2008).
[NM-23] = [NCO-32]
Margeat, B. Chaudret, P. Lecante, E. Snoeck.
J. Appl. Phys. 103, 07D521 (2008).
[NM-27] = [NCO-39]
L.M Lacroix, S. Lachaize, A. Falqui, M. Respaud, B. Chaudret.
Iron nanoparticles growth in organic super-structures.
J. Am. Chem. Soc., 131, 549 (2009).
[NM-28] = [NCO-40]
J. Maynadié, A. Salant, A. Falqui, M. Respaud, E. Shaviv, K. Soulantika, B. Chaudret.
Cobalt growth on the tips of CdSe nanorods.
Angewandte, 48, 1814 (2009).
[NM-29] = [NCO-41]
L.-M. Lacroix, R. Bel-Malaki, J. Carrey, S. Lachaize, G. F. Goya, B. Chaudret, M. Respaud.
Hyperthermia properties of single-domain monodisperse FeCo nanoparticles: evidence for StonerWohlfarth behavior and large losses.
J. Appl. Phys. 105, 023911 (2009)
NM/Appendix - 73
NTC
« Nanotech » group
Equipe « Nanotech »
ACL
2005
[NTC-1] M. Shalchian, J. Grisolia, G. Ben Assayag, H. Coffin, S. M. Atarodi and A.Claverie
Room-temperature quantum effect in silicon nanoparticles obtained by low-energy ion implantation and
embedded in a nanometer scale capacitor
Appl. Phys. Lett. 86, 163111-163113 (2005).
[NTC-2] P. Gallo, B. Viallet and E. Daran
Efficient aminosilane adhesion promoter for soft nanoimprint on GaAs
Appl. Phys. Lett. 87, 183111-183113 (2005).
[NTC-3] B. Viallet, P. Gallo and E. Daran
Nano-imprint process using epoxy-siloxane low-viscosity prepolymer
Journal of Vacuum Science and Technology B 23 (1), 72-75 (2005).
[NTC-4] M. Shalchian, J. Grisolia, G. Ben Assayag, H. Coffin and A. Claverie
From continuous to quantized charging response of silicon nanocrystals obtained by ultra-low energy ion
implantation
Solid State Electronics 49 (7), 1198-1205 (2005).
[NTC-5] J. Grisolia, M. Shalchian, G. BenAssayag, H. Coffin, C. Bonafos, S. Schamm, S. M. Atarodi and
A. Claverie
The effects of oxidation conditions on structural and electrical properties of silicon nanoparticles obtained
by ultra-low energy ion implantation
Nanotechnology 16, 2987–2992 (2005).
[NTC-6] G. Ben Assayag, J. Grisolia, M. Shalchian, H. Coffin, C. Dumas, S. M. Atarodi and A. Claverie.
Electrical properties of nanocontacts on silicon nanoparticles embedded in thin SiO2 synthesized by ultralow energy ion implantation.
Journal of Vacuum Science and Technology B 23 (6), 2821-2825 (2005).
[NTC-7] G. BenAssayag, M. Shalchian, J. Grisolia, C. Bonafos, S. M. Atarodi and A. Claverie
From continuous to quantized charging phenomena in few nanocrystals MOS structures.
Solid State Phenomena 108-109, 25-32 (2005).
[NTC-8] J. Grisolia, M. Shalchian, G. BenAssayag, H. Coffin, C. Bonafos, C. Dumas, S. M. Atarodi and
A. Claverie
Evolution of quantum electronic features with the size of silicon nanoparticles embedded in a SiO2 layer
obtained by low energy ion implantation
Solid State Phenomena 108-109, 71-76 (2005).
[NTC-9] J. Grisolia, M. Shalchian, G. BenAssayag, H. Coffin, C. Bonafos, S. Schamm, S. M. Atarodi and
A. Claverie
NTC/Appendix - 75
Oxidation effects on transport characteristics of nanoscale MOS capacitors with an embedded layer of
silicon nanocrystals obtained by low energy ion implantation
Materials Science and Engineering B 124-125, 494-498 (2005).
[NTC-10] C. De Nardi, R. Desplats, P. Perdu, F.Beaudoin and J.-L. Gauffier
Oxide charge measurements in EEPROM devices
Microelectronics and Reliability 45 (9-11), 1514-1519 (2005).
2006
[NTC-11] A. Arbouet, M. Carrada, F. Demangeot, V. Paillard,G. BenAssayag, C. Bonafos, A. Claverie, S.
Schamm, C. Dumas, J. Grisolia, M.A.F. Van den Boogaart, J. Brugger and L. Doeswijk
Photoluminescence characterization of few-nanocrystals electronic devices
Journal of Luminescence 121, 340-343 (2006).
[NTC-12] C. DeNardi, R. Desplats, P. Perdu, J-L. Gauffier and C. Guérin
Descrambling and data reading techniques for flash-EEPROM memories. Application to smart cards
Microelectronics and Reliability 46 (9-11), 1569-1574 (2006).
2007
[NTC-13] R. P. Tan, J. Carrey, C. Desvaux, J. Grisolia, P. Renaud, B. Chaudret and M. Respaud
Transport in magnetic nanoparticles super-lattices: Coulomb blockade, hysteresis and magnetic field
induced switching - Coulomb glass melting and magnetoresistance in millimeter-long Super-Lattices of
magnetic nanoparticles
Phys. Rev. Letters 99, 176805 (2007).
[NTC-14] C. Dumas, J. Grisolia, G. BenAssayag, C. Bonafos, S. Schamm, A. Claverie, A.Arbouet, M.
Carrada, V. Paillard and M. Shalchian
Influence of the thickness of the tunnel layer on the charging characteristics of Si nanocrystals embedded
in an ultra-thin SiO2 layer
Physica E 38, 80–84 (2007)
[NTC-15] L. Ressier, C. Martin, B. Viallet, J. Grisolia and J. P. Peyrade
Control of micro and nano-patterns of octadecyltrimethoxysilane monolayers using nanoimprint
lithography and atmospheric chemical vapor deposition
Journal of Vacuum Science and Technology B 25, 17-20 (2007)
[NTC-16] J. Grisolia, C. Martin, L. Ressier, J. P. Peyrade, B. Viallet and C. Vieu
Control of negative poly(methyl methacrylate) for the elaboration of planar electrodes separted by a sub10nm gap
Journal of Nanoengineering and Nanosystems 221, n°2, 61-69 (2007).
[NTC-17] L. Ressier, B. Viallet, J. Grisolia and J. P. Peyrade
Chemical patterns of octadecyltrimethoxysilane monolayers for the selective deposition of gold
nanoparticles on silicon substrate
Ultramicroscopy 107/10-11, 980-984 (2007).
[NTC-18] J. Grisolia, L. Ressier, C. Martin, J.P. Peyrade, B. Viallet and C. Vieu
Fabrication of planar ferromagnetic electrodes separated by a sub-10nm gap using high resolution
electron beam lithography with negative PMMA
Ultramicroscopy 107/10-11, 985-988 (2007).
NTC/Appendix - 76
[NTC-19] B. Viallet, L. Ressier, J. Grisolia, R. Podgajny, C. Amiens, M. A. F. van den Boogaart and J.
Brugger
Selective deposition of gold nanoparticles using Van der Waals interactions
Physica Status Solidi (c) 4, n°2, 276-278 (2007).
[NTC-20] C. Dumas, J. Grisolia, L. Ressier, A. Arbouet, M. Carrada, V. Paillard, G. BenAssayag, C.
Bonafos, A. Claverie, M. A. F. van den Boogaart and J. Brugger
Synthesis of localized 2D-layers of silicon nanoparticles embedded in a SiO2 layer by a stencil-masked
ultra-low energy ion implantation process
Physica Status Solidi (a) 204, n°2, 487-491 (2007).
[NTC-21] C. Dumas, J. Grisolia, M. Carrada, A. Arbouet, V. Paillard, G. Ben Assayag, C. Bonafos,
S.Schamm and A.Claverie
Photoluminescence spectroscopy and transport electrical measurements reveal the quantized features of Si
nanocrystals embedded in an ultra thin SiO2 layer
Physica Status Solidi (c) 4, n°2, 311– 315 (2007).
2008
[NTC-22] M. Nouiri, K. Djessas, J.L. Gauffier, L. El Mir and S. Alaya
Effect of the growth temperature on the structural, morphological and electrical properties of
CuIn0.7Ga0.3Se2
layers
grown
by
CSVT
technique
Thin Solid Films 516 (20), 7088-7093 (2008)
[NTC-23] J. Grisolia, C. Dumas, G. BenAssayag, C. Bonafos, S. Schamm, A. Arbouet, V. Paillard, M.A.F.
Van den Boogaart, J. Brugger and P. Normand
Silicon nanoparticles synthesized in SiO2 pockets by stencil-masked low-energy ion implantation and
thermal annealing
Superlattices and Microstructures 44, 395–401 (2008).
[NTC-24] L. Lacroix, L. Ressier, C. Blanc and G. Mankowski
Statistical study of the corrosion behavior of Al2CuMg intermetallics in AA2024-T351 by SKPFM
Journal of The Electrochemical Society, 155 (1), C8-C15 (2008).
[NTC-25] L. Lacroix, L. Ressier, C. Blanc and G. Mankowski
Combination of AFM, SKPFM and SIMS to study the electrochemical behavior of S-phase particles in
A2024-T351
Journal of The Electrochemical Society, 155 (4), C131-C137 (2008).
[NTC-26] C. Dumas, L. Ressier, J. Grisolia, A. Arbouet, V. Paillard, G. BenAssayag, S. Schamm and P.
Normand
KFM detection of charges injected by AFM into a thin SiO2 layer containing Si nanocrystals
Microelectronic Engineering, 85, 2358-2361 (2008)
[NTC-27] L. Ressier and V. Le Nader
Electrostatic nanopatterning of PMMA by AFM charge writing for directed self-assembly
Nanotechnology 19, 135301-135306 (2008)
[NTC-28] B. Viallet, J. Grisolia, L. Ressier and T. Lebraud
Stencil assisted reactive ion etching for micro and nanopatterning
Microelectronic Engineering 85, 1705-1708 (2008)
NTC/Appendix - 77
[NTC-29] E. Lamouroux, M. Corrias, L. Ressier, Y. Kihn, P. Serp and P. Kalck
Optimization of the OMCVD process for iron and molybdenum supported nanoparticles elaboration from
their carbonyl precursors
Chemical Vapor Deposition 14, 275-278 (2008).
[NTC-30] L. Ressier, B. Viallet, A. Beduer, D. Fabre, L. Fabie, E. Palleau and E. Dague
Combining convective/capillary deposition and AFM oxidation lithography for close-packed directed
assembly of colloids
Langmuir 24 (23), 13254-13257 (2008).
2009
[NTC-31] L. Ressier, E. Palleau, C. Garcia, G. Viau and B. Viallet
How to control AFM nanoxerography for the templated monolayered self-assembly of 2 nm colloidal gold
nanoparticles
IEEE T Nanotechnology 8, n°4, 487-491 (2009).
[NTC-32] J. Grisolia, B. Viallet, C. Amiens, S. Baster, A.S. Cordan, Y. Leroy, S. Soldano, J. Brugger et L.
Ressier
99% random telegraph signal-like noise in gold nanoparticle µ-stripes
Nanotechnology 20, 355303-355308 (2009).
[NTC-33] A. Barnabé, M. Lalanne, L. Presmanes, Ph. Tailhades, C. Dumas, J. Grisolia, A. Arbouet, V.
Paillard, G. BenAssayag, M.A.F. van den Boogaart, J. Brugger et P. Normand
Nanostructured ZnO-based layers deposited by non reactive rf magnetron sputtering on ultra-thin SiO2/Si
through a stencil mask
A paraître dans Thin Solid Films [doi: 10.1016/j.tsf.2009.03.232 (2009)]
ACLN
2007
[NTC30] B. Viallet, C. Martin, L. Ressier, J. Grisolia and J. P. Peyrade
Localisation of octadecyltrimethoxysilane self-assembled monolayers by combination of bottom-up and
top-down approaches (ORAL)
International Symposium on silanes and other coupling agents, 22-24 Juin 2005, Toronto (Canada)
Silane and Other Coupling Agents (edited by K.L. Mittal, VSP) 4, 153-162 (2007)
INV
2005
[NTC31] B. Viallet
Micro-Nanostructuration et fonctionnalisation de surfaces
LaboratoiremixteCNRS/Saint-Gobain,Aubervilliers, 10 Novembre 2005
2006
[NTC32] L. Ressier
Selective grafting of nanoparticles on chemical nanopatterns
CBEN, Université de Barcelone (Espagne), 15 Novembre 2006
NTC/Appendix - 78
2007
[NTC33] L. Ressier
Formation pratique en microscopie à champ proche
CIME, Grenoble, 7 Février 2007
2008
[NTC34] L. Ressier
La microscopie à force atomique dans tous ses états
CIRIMAT, Toulouse, 30 Avril 2008
2009
[NTC35] L. Ressier
Injection de charges par AFM et mesures KFM
LAAS, Toulouse, 24 Mars 2009
[NTC36] L. Ressier
Assemblage dirigé de nanoparticules en solution colloïdale sur des surfaces
Institut Néel, Grenoble, 30 Mars 2009
[NTC37] L. Ressier
Etude des diélectriques par microscopie à sonde Kelvin
LAPLACE, Toulouse, 30 Avril 2009
ACTI
2006
[NTC38] M. Shalchian, A. Claverie, J. Grisolia, G. BenAssayag and S. Atarodi
‫ان عاده ف وق ان رژي ب ا ي ون ي ك ا شت روش ب و شده س ن تز س ي ه ي كان ىاي ك ري س تال ن ان و در ب ار ذخ يره محم ب رر سي‬
‫( ك م‬ORAL)
International Conference on ICEE, 1-4 Juillet 2006, Téhéran (Iran)
Proceedings of the International Conference on ICEE 2006
2007
[NTC39] L. Lacroix, L. Ressier, C. Blanc et G. Mankowski
SKPFM study of the corrosion behaviour of Al-Cu-Mg intermetallic particles in the 2024 alloy (ORAL)
International Conference on Corrosion and Material Protection 07, 1-4 Octobre 2007, Prague (République
Tchèque)
Proceedings of the International Conference on Corrosion and Material Protection 2007, paper n°026
(2007)
COM
2006
NTC/Appendix - 79
[NTC40] R. Tan, J. Carrey, C. Desvaux, M. Respaud, J. Grisolia, P. Renaud and B. Chaudret
Magnetotransport and coulomb blockade properties of CoFe nanoparticle three-dimensional superlattices
synthesized by organometallic chemistry
European Materials Research Society 2006, 29 Mai – 2 Juin 2006, Centre des Congrès Acropolis, Nice
(France)
[NTC41] L. Ressier, B. Viallet, J. Grisolia and J. P. Peyrade
AFM Study of chemical nanopatterns
Scanning Probe Microscopy, Sensors & Nanostructures 2006, 3-6 Juin 2006, La Grande Motte (France)
[NTC42] A. Claverie, C. Bonafos, G. Ben Assayag, M. Carrada, H. Coffin, N. Cherkashin, P. Normand, P.
Dimitrakis, E. Kapetenakis, T. Muller, B. Schmidt, K. H. Heinig, M. Perego, M. Fanciulli, V. Soncini, D.
Mathiot, V. Paillard, A. Wellner, J. Grisolia and C. Dumas
Si nanocrystals by ultra low energy beam synthesis: from non volatile memories applications to single
electron devices (Conférence invitée)
Nanomat2006: International Workshop on Nanostructured Materials, 21-23 Juin 2006, Antalya (Turquie)
[NTC43] A. Claverie, C. Bonafos, G. Ben Assayag, M. Carrada, H. Coffin, N. Cherkashin, P. Normand, P.
Dimitrakis, E. Kapetenakis, T. Muller, B. Schmidt, K. H. Heinig, M. Perego, M. Fanciulli, V. Soncini, D.
Mathiot, V. Paillard, A. Wellner, J. Grisolia and C. Dumas.
Materials Science issues for the fabrication of nanocrystal memory devices by ultra low energy ion
implantation (Conférence invitée)
2nd International Conference on "Diffusion in Solids and Liquids", 26-28 Juillet 2006, Aveiro (Portugal)
[NTC44] L. Ressier
La nanoélectronique dans le CNFM
9èmes journées pédagogiques du CNFM, 23-25 Novembre 2006, Saint-Malo (France)
2007
[NTC45] R. Tan, J. Carrey, C. Devaux, J. Grisolia, P. Renaud, B. Chaudret and M. Respaud
Magnetotransport in magnetic nanoparticle 3D super-lattices (Conférence invitée)
MMM 2007, 10th Joint MMM/Intermag Conference, 7-11 Janvier 2007, Baltimore (USA)
[NTC46] L. Lacroix, C. Blanc, J. B. Jorcin, G. Mankowski, N. Pébère, L. Ressier and G. E. Thompson
7th Simulation of galvanic coupling within the 2024-T3 aluminium alloy, an LEIS study of model alloys
International Symposium on Electrochemical Impedance Spectroscopy, 4-8 Juin 2007, Argelès-sur-Mer
(France)
[NTC47] L. Lacroix, C. Blanc, G. Mankowski, L. Ressier and G. Thompson
Simulation du couplage galvanique au sein de l’alliage d’aluminium 2024 à l’aide d’alliages modèles
Journées d‘Electrochimie, 2-6 Juillet 2007, Lyon (France)
[NTC48] L. Lacroix, L. Ressier, G. Mankowski and C. Blanc
Statistical Study of the Corrosion Behavior of Al2CuMg Intermetallics Using Scanning Kelvin Probe Force
Microscopy 212ème Meeting of the Electrochemical Society, 7-12 Octobre 2007, Washington (Etats Unis)
[NTC49] J. Brugger, M. Van Den Boggarts, J. Grisolia, C. Dumas, C. Bonafos, G. Ben Assayag, , P.
Normand, V. Paillard and A. Arbouet
Stencil Lithography – Quick & Clean Surface Patterning at Mesoscopic Scales (Conférence invitée)
54th International Symposium & Exhibision, 14-19 Octobre 2007, Seattle (USA )
[NTC50] J. Grisolia
NTC/Appendix - 80
Développement d’un cours de E-learning
10èmes journées pédagogiques du CNFM, 28 Novembre 2007, Paris (France)
2008
[NTC51] L. Ressier
Enseignements pratiques en microscopie à sonde locale à l’INSA de Toulouse
Forum des microscopies à sonde locale 2008, 17-21 Mars 2008, La Londe les Maures (France)
[NTC52] L. Ressier, C. Garcia, G. Viau and E. Palleau
Dépôt électrostatique dirigé de nanoparticules en solution par nanoxérographie par AFM
Forum des microscopies à sonde locale 2008, 17-21 Mars 2008, La Londe les Maures (France)
[NTC53] C. Dumas, J. Grisolia, J. Carrey, A. Arbouet, V. Paillard, G. BenAssayag, S. Schamm, M.A.F.
van den Boogaart, V. Savu, J. Brugger, P. Normand and M. Shalchian
Charging dynamics of localized 2D layers of Si nanocrystals embedded into SiO2 by stencil masked ultra
low energy ion implantation process
EMRS 2008, Symp H, 26-30 Mai 2008, Centre des Congrès, Strasbourg (France)
[NTC54] J. Grisolia and J. P. Ulmet
E-learning experience for micro-nanotechnologies using a combination of Adobe Presenter and Moodle
EWME 2008 — 7th European Workshop on Microelectronics Education, 28–30 Mai 2008 Budapest
(Hongrie)
[NTC55] A. Barnabé, M. Lalanne, L. Presmanes, Ph. Tailhades, C. Dumas, J. Grisolia, M. Naceur, A.
Arbouet, V. Paillard, G. BenAssayag, M.A.F. van den Boogaart, J. Brugger and P. Normand
Nanostructured ZnO-based layers deposited by non reactive rf magnetron sputtering on ultra-thin SiO2/Si
through a stencil mask
2nd International Symposium on Transparent Conductive Oxides, 22 - 26 Octobre 2008, Hersonissos, Crete
(Grèce)
[NTC56] L. Ressier, E. Palleau, C. Garcia, G. Viau, G. Delamare et B. Viallet
Templated assembly of 2 nm colloidal gold nanoparticles by AFM electrostatic nanopatterning
Nano South-West European Conference 2008, 3-5 Novembre 2008, Bordeaux (France)
[NTC57] E. Palleau, L. Ressier, C. Garcia, G. Viau et B. Viallet
AFM Nanoxerography for the directed assembly of 2 nm colloidal gold nanoparticles
Journées Nationales sur les Technologies Emergentes en Micro-nanofabrication 2008, 19-21 Novembre
2008, Toulouse (France)
[NTC58] J. Grisolia
Expérience e-learning pour les micro-nanotechnologies utilisant une combinaison d’Adobe Presenter et
Moodle
11èmes journées pédagogiques du CNFM, 26-28 Novembre 2008, Saint-Malo (France)
2009
[NTC59] J. Grisolia and J. P. Ulmet
E-learning experience for micro-nanotechnologies device elaboration
Rencontres Pédagogie et Formations d‘Ingénieurs - 30 & 31 Mars 2009, Toulouse (France)
NTC/Appendix - 81
AFF
2005
[NTC60] R. Tan, C. Desvaux, J. Carrey, M. Respaud, J. Grisolia, B. Chaudret and P. Renaud
Propriétés de conduction et magnétorésistance de super-cristaux de CoFe stabilisés par des ligands
organiques « NanoObjets aux InterfaceS » NOIS, 22-25 Novembre 2005, Montpellier (France)
2006
[NTC61] L. Ressier, L. Lacroix and C. Blanc
Etude de la corrosion localisée d’alliages d’aluminium 2024 par AFM in-situ et KFM
Forum des microscopies à sonde locale 2006, 27-31 Mars 2006, Autrans (France)
2008
[NTC62] B. Viallet, L. Ressier, D. Fabre, A. Beduer, L. Fabie, E. Palleau and E. Dague
Combination of convective/capillary deposition and AFM oxidation lithography for colloid directed
assembly
Nano South-West European Conference 2008, 3-5 Novembre 2008, Bordeaux (France)
[NTC63] L. Ressier, B. Viallet, A. Beduer, D. Fabre, L. Fabie, E. Palleau and E. Dague
Directed assembly of nanoparticles and bacteria by convective/capillary deposition and AFM oxidation
lithography
[NTC64] C. Dumas, J. Grisolia, G. Benhassayag, C. Bonafos, S. Schamm, A. Arbouet, V. Paillard, M.
Van Den Boogaart, J. Brugger and P. Normand
Controlled synthesis of silicon nanocrystals into a thin SiO2 layer synthesized by stencil-masked ultra-low
energy ion implantation
[NTC65] E. Palleau, L. Ressier, B. Viallet, C. Garcia, V. Guieu and G. Viau
Assemblage dirigé de nanoparticules d’or par nanoxérographie par AFM
Réunion plénière 2008 du GDR Or-Nano, 1-3 Décembre 2008, Bordeaux (France)
NTC/Appendix - 82
OPTO
« Quantum Optoelectronics » Group
Equipe « Optoélectronique Quantique »
ACL
(Articles dans des revues internationales ou nationales avec comité de lecture)
2005
[OPTO-1] P-F.Braun, X.Marie, L.Lombez, B.Urbaszek, T.Amand, P.Renucci,V Kalevich, K.Kavokin,
O.Krebs, P. Voisin, and M. Masumoto,
Direct observation of the electron spin relaxation induced by nuclei in quantum dots, Phys. Rev. Lett. 94,
116601,1-4 (2005)et : Nature, Research Highlights, 434, 839 (2005)
[OPTO-2] S.Laurent, B.Eble, O.Krebs, A.Lemaître, B.Urbaszek, X.Marie, T.Amand, and P.Voisin,
Electrical Control of Hole Spin Relaxation in Charge Tunable InAs/GaAs Quantum Dots,
Phys. Rev. Lett. 94, 147401 (2005)
[OPTO-3] M.Sénès, B.Urbaszek, X.Marie, and T.Amand,
J.Tribollet, F.Bernardot, C.Testelin, and M.Chamarro, J-M.Gérard,
Exciton spin manipulation in InAs/GaAs quantum dots :
Exchange interaction and magnetic field effects,
Phys. Rev. B 71, 115334 (2005)
[OPTO-4] P.Renucci, T.Amand, and X.Marie, P.Senellart, J.Bloch, and B.Sermage, K.V.Kavokin,
Microcavity polariton spin quantum beats without a magnetic field :
A manifestation of Coulomb exchange in dense and polarized polariton systems
Phys. Rev. B 72, 075317 (2005)
[OPTO-5] H.Carrère, X.Marie, J.Barrau, T.Amand, S.Ben Bouzid, V.Sallet, J-C.Harmand,
Comparison of the optical gain of InGaAsN quantum-well lasers with GaAs or GaAsP barriers,
Applied Phys. Letters 86, 071116 (2005)
[OPTO-6] L.Lombez, P-F.Braun, H.Carrère, B.Urbaszek, P.Renucci, T.Amand, X.Marie,
J.C.Harmand, V.K.Kalevich,
Spin dynamics in dilute nitride semiconductors at room temperature,
Applied Phys.Letters, 87 (25), 252115 (2005)
[OPTO-7] M.Hjiri, F.Hassen, H.Maaref, A.Jbeli, M.Sénès, X.Marie, T.Amand, B.Salem, G.Bremond,
M.Gendry.
Arsenic pressure and spacer layer thickness effects on the optical properties of stacked InAs/InAlAs
quantum dot array
Physica Status Solidi (c) 2, 1399-1403 (2005)
[OPTO-8] J. Plaza, J.-L. Castano, B. J. Garcia, H. Carrère, E. Bedel-Pereira
Temperature dependence of photoluminescence and photoreflectance spectra of dilute GaAsN alloys
Applied Phys.Letters, 86 (12), 121918 (2005)
[OPTO-9] P. Miska, J. Even and C. Paranthoen, A. Jbeli, M. Sénès, and X. Marie
Vertical electronic coupling between InAs/InP quantum dot layers emitting in the near infrared range
Applied Physics Letters. 86, 111905 (2005)
OPTO/Appendix - 83
[OPTO-10] P.-F. Braun, L. Lombez, X. Marie, B.Urbaszek, M. Sénès, T. Amand, V. K. Kalevich, K.
Kavokin, O. Krebs, P. Voisin, V. Ustinov
Spin dynamics in p-doped InAs/GaAs quantum dots
Physica Status Solidi (b), 242, 1233-1236 (2005)
2006
[OPTO-11] B. Salem, G.Bremond, and G. Guillot, M. Gendry, A. Jbeli, X. Marie, and T. Amand
Optical transitions and carrier dynamics in self-organized InAs quantum dots grown on In0.52Al0.48As
InP(001) Physica E, Low dimentional systems and nanostructures, 31, 232-234 (2006)
[OPTO-12] F.Bernardot, E.Aubry, J.Tribollet, C.Testelin, M.Chamarro, L. ombez, P.-F. Braun, X.
Marie, T.Amand, and J-M.Gérard,
Linear and dynamical photoinduced dichroisms of InAs/GaAs self-assembled quantum dots:
Population relaxation and decoherence measurements
Phys. Rev. B 73, 085301 (2006)
[OPTO-13] S.Laurent, M.Sénès,O.Krebs,V.K.Kalevich, B.Urbaszek, X.Marie, T.Amand, and P.Voisin
Negative circular polarisation as a general property of n-doped self assembled InAs/GaAs quantum
dots under nonresonant optical excitation
Phys. Rev. B 73, 235302 (2006)
[OPTO-14] B.Eble, O.Krebs,A.Lemaître, K.Kowalik, A.Kudelski, P. Voisin, B.Urbaszek, X.Marie,
and T.Amand
Dynamic nuclear polarization of a single charge-tunable InAs/GaAs quantum dot
Phys. Rev. B 74, 081306(R) (2006) (cond-mat/0508281 2005)
[OPTO-15] P-F.Braun, B.Urbaszek, T.Amand, and X.Marie, O.Krebs, B.Eble, A.Lemaitre, and
P.Voisin
Bistability of the nuclear polarization created through optical pumping in In1-xGaxAs quantum dots
Phys. Rev. B 74, 245306 (2006)
[OPTO-16] H. Carrère, X. Marie, L. Lombez, T. Amand
Optical gain of InGaAsN/InP quantum wells for laser applications
Applied Phys. Letters, 89, (18), 181115 (2006)
[OPTO-17] S.Bonnefont, B.Messant, M.Boutillier, O.Gauthier-Lafaye, F.Lozes, A.Martinez, V.Sallet,
K.Merghme, L.Ferlazzo, J-C.Harmand, A.Ramdane, J-C.Provost, B.Landreau, O.Le Gouezigou,
X.Marie
Optimisation and characterisation of InGaAsN/GaAs quantum-well ridge laser diodes for high
frequency operation
Optical and Quantum Electronics 38, 313 (2006)
[OPTO-18] K.Veselinov, F.Grillot, P.Miska, E.Homeyer, P.Caroff, C.Platz, J.Even, X.Marie,
O.Dehaese, S. Loualiche and A. Ramdane,
Carrier dynamics and saturation effect in (113)B InAs/InP quantum dot lasers
Optical and Quantum Electronics 38, 369 (2006)
[OPTO-19] B.Eble, P-F.Braun, O.Krebs, L.Lombez, X.Marie, B.Urbaszek, T.Amand, D.Lagarde,
P.Renucci, P.Voisin, A.Lemaître, K.Kowalik, A.Kudelski, V.K.Kalevich, and K.Kavokin
Spin dynamics and hyperfine interaction in InAs semiconductor quantum dots
Phys. Stat. Sol. (b) 243, 2266 (2006)
OPTO/Appendix - 84
[OPTO-20] P-F.Braun, B.Eble, L.Lombez, B.Urbaszek, X.Marie, T.Amand, P.Renucci, O.Krebs,
A.Lemaître, P.Voisin, V.K.Kalevich and K.V.Kavokin
Spin relaxation of positive trions in InAs/GaAs quantum dots: the role of hyperfine interaction
Physica Status Solidi (b) 243, 3917 (2006)
2007
[OPTO-21] S. Berger, C. Voisin, G. Cassabois, P. Roussignol, C. Delalande, X. Marie
Temperature dependence of exciton recombination in semiconducting single-wall carbon nanotubes
Nano Letters 7, 398 (2007)
[OPTO-22] L.Lombez, P-F.Braun, X.Marie, P.Renucci, B.Urbaszek, and T.Amand,O.Krebs and P.Voisin
Electron spin quantum beats in positively charged quantum dots: Nuclear field effects
Phys. Rev. B 75, 195314 (2007) (Cond-Mat/0701284, 2007)
[OPTO-23] P.Gallo, A.Arnoult, T.Camps, E.Havard, and C.Fontaine, L.Lombez, T.Amand, and X.Marie,
A. Bournel
Self-aligned and stray-field-free electrodes for spintronics:An application to a spin field effect transistor
Journal of Applied Physics 101, 024322 (2007)
[OPTO-24] V.K.Kalevich, A.Yu.Shiryaev, E.L.Ivchenko, A.Yu.Egorov, L.Lombez, D.Lagarde, X.Marie,
and T.Amand
Spin-Dependent Electron Dynamics and Recombination in GaAs1 –xNx Alloys at Room Temperature
JETP Letters 85, 174 (2007)
[OPTO-25] L.Lombez, P.Renucci, P-F.Braun, H.Carrère, X.Marie, T.Amand, B.Urbaszek, and
J.L.Gauffier, P.Gallo, T.Camps, A.Arnoult, and C.Fontaine,C.Deranlot, R.Mattana, H.Jaffrès, and JM.George, P.H.Binh
Electrical spin injection into p-doped quantum dots through a tunnel barrier
Applied Phys. Letters, 90 (25) 081111 (2007) (Cond-Mat/0610424, 2007)
[OPTO-26] D.D. Solnyshkov, I.A. Shelykh, M.M. Glazov, G. Malpuech,
T. Amand, P. Renucci, X. Marie, A.V. Kavokin
Non linear effects in spin relaxation of cavity polaritons
[Physique et Technique des Semiconductors-Springer Verlag 41, 1099 (2007)]
Semiconductors 41, 1080 (2007)
[OPTO-27] B.Urbaszek, P-F.Braun, X.Marie, O.Krebs, T.Belhadj, A.Lemaitre, P.Voisin, and T.Amand
Efficient dynamical nuclear polarization in quantum dots: Temperature dependence
Phys. Rev. B 76, 201301(R), (2007) ; (cond-mat/0707.0370, 2007)
[OPTO-28] M.Boutillier, O.Gauthier-Lafaye, S.Bonnefont, F.Lozes, L.Lombez, D.Lagarde, X.Marie, F.J.
Vermersch, M. Calligaro, M. Lecomte, O. Parillaud, M. Krakowski, O. Gilard
Electron irradiation effects on Al free laser diodes emitting at 852 nm
IEEE Transactions on Nuclear Sciences, 54, 1110 (2007)
[OPTO-29] O.Krebs, B.Eble, A.Lemaitre, B.Urbaszek, K.Kowalik, A.Kudelski, X.Marie, T.Amand,
P.Voisin
Role of hyperfine interaction on electron spin optical orientation in charge-controlled InAs-GaAs single
quantum dots
Physica Status Solidi (a), applications and materials science, 204, 202-207 (2007)
[OPTO-30] D.Lagarde, L.Lombez, X.Marie, A.Balocchi, T.Amand, V.K.Kalevich, A.Shiryaev,
E.Ivchenko, and A.Egorov
Electron spin dynamics in GaAsN and InGaAsN structures
Physica Status Solidi (a) 204, 208-220 (2007)
OPTO/Appendix - 85
2008
[OPTO-31] D. Lagarde, A. Balocchi, H. Carrère, P. Renucci, T. Amand, and X. Marie, S. Founta and
H.Mariette,
Room-temperature optical orientation of the exciton spin in cubic GaN/AlN quantum dots,
Phys. Rev. B 77, 041304(R) (2008) (Cond-Mat/0711.4535, 2007)
[OPTO-32] D. Lagarde, A. Balocchi, P. Renucci, H. Carrère, F. Zhao, T. Amand, and X. Marie, Z. X.
Mei, X. L. Du, and Q. K. Xue,
Exciton and hole spin dynamics in ZnO investigated by time resolved photoluminescence experiments,
Phys. Rev. B 78, 033203(Brief-Reports) (2008) (Cond-Mat/0804.2369, 2008)
[OPTO-33] D. Paget, T. Amand, J.-P. Korb
Light induced quadrupolar relaxation in semiconductors,
Phys. Rev. B 77, 245201 (2008) (Cond-Mat/0801.2894, 2008)
[OPTO-34] T. Belhadj, T. Kuroda, C.-M. Simon, T. Amand, T. Mano, K. Sakoda, N. Kogushi, X.
Marie, and B. Urbaszek
Optically monitored nuclear spin dynamics in individual droplet epitaxy quantum dots,
Phys. Rev. B 78, 205325 (2008) (Cond-Mat/0806.4836, 2008)
[OPTO-35] Y.Lu, V. G. Truong, P. Renucci, M. Tran, H. Jaffrès, C. Deranlot, J.-M.George
A. Lemaître, Y. Zheng, D. Demaille, T. Amand, X. Marie,
MgO thickness-dependence of spin injection efficiency in Spin-LED,
[OPTO-36] O. Krebs, B. Eble, A. Lemaître, P. Voisin, B. Urbaszek, T. Amand, X. Marie
Hyperfine interaction in InAs/GaAs self-assembled quantum dots : dynamical nuclear polarization
versus spin relaxation
Compte Rendus Physique, 9, n°8, 874 (2008) ; (contribution invitée)
Ed. J.-M. Gérard, H. Mariette, Académie des Sciences, Paris, Elsevier.
[OPTO-37] J. Carrey, H. Carrère, M.L. Kahn, B. Chaudret, X. Marie, M. Respaud
Photoconductivity of self-assembled ZnO nanoparticles synthesized by organometallic chemistry
Semiconductor Science and Technology 23, (2), 025003 (2008)
[OPTO-38] P. Miska, J. Even, O. Dehaese, X. Marie
Carrier relaxation dynamics in InAs/InP quantum dots
2009
[OPTO-39] D. Lagarde, A. Balocchi, P. Renucci, H. Carrère, T. Amand, X. Marie,
Z. X. Mei, X. L. Du,
Hole spin quantum beats in bulk ZnO
Phys. Rev. B 79, 045204 (2009)
[OPTO-40] T. Kuroda, T. Belhadj, M. Abbarchi, C. Mastrandrea, M. Gurioli,
T. Mano, N. Ikeda, Y. Sugimoto, K. Asakawa, N. Koguchi, K. Sakoda,
B. Urbaszek, T. Amand, and X. Marie
Bunching visibility for correlated photons from single GaAs quantum dots
Phys. Rev. B 79, 035330 (2009)
[OPTO-41] F. Zhao, A. Balocchi, G. Truong, T. Amand, X. Marie,
X. J.Wang, I. A. Buyanova, W. M. Chen and J.-C. Harmand
OPTO/Appendix - 86
(contribution invitée)
Electron spin control in dilute nitride semiconductors
Journal of Physics: Condensed Matter, special issue : Physics of III-V Nitrides
J. Phys.: Condens. Matter 21, 174211 (2009)
[OPTO-42] Y. Sun, N. Balkan, M. Aslan, S. B. Lisesivdin, H. Carrère, M. C. Arikan, X. Marie
Electronic transport in n- and p-type modulation doped GaxIn1-xNyAs1-y/GaAs quantum wells
Journal of Physics - Condensed Matter 21, n°17, 174210 (2009)
[OPTO-43] B. Eble, C. Testelin, P. Desfonds, F. Bernardot, A. Balocchi , T. Amand, A. Miard, A.
Lemaître, X. Marie and M. Chamarro
Hole - Nuclear Spin Interaction in Quantum Dots
Phys. Rev. Letters 102, 146601 (2009), (Cond-Mat/0807.0968, 2008)
[OPTO-44] V. G. Truong, P.-H. Binh, P. Renucci, M. Tran, Y. Lu, H. Jaffrès, J.-M. George, C. Deranlot,
A. Lemaître, T. Amand, and X. Marie
High speed pulsed electrical spin injection in Spin-Light Emitting Diode
Applied Physics Letters 94, 141109 (2009)
[OPTO-45] X. J. Wang, I. A. Buyanova, F. Zhao, D. Lagarde, A. Balocchi, X. Marie, C.W. Tu, J. C.
Harmand and W. M. Chen
Room-temperature defect-engineered spin filter based on a non-magnetic semiconductor
Nature Materials 8, 198 (2009)
[OPTO-46] P. Miska, J. Even, X. Marie, O. Dehaese
Electronic structure and carrier dynamics in InAs/InP double-cap quantum dots
[OPTO-47] M. Sénès, D. Lagarde, K. L. Smith, A. Balocchi, S. E. Hooper, T. Amand, J. Heffernan, X.
Marie
Electrical control of the exciton spin in nitride semiconductor quantum dots
[OPTO-48] T. Belhadj, T. Kuroda, C.-M. Simon, T. Amand, T. Mano, K. Sakoda, N. Koguchi, X. Marie,
and B. Urbaszek,
Optical orientation of electron and nuclear spin in strain free GaAs quantum dots grown by droplet
epitaxy
Physica Status Solidi (b), 1– 4 (2009) / DOI 10.1002/pssb.200880576
[OPTO-49] T. Kuroda, T. Belhadj, T. Mano, B. Urbaszek, T. Amand, X. Marie, S. Sanguinetti,
K. Sakoda, and N. Koguchi
Magneto photoluminescence in droplet epitaxial GaAs quantum rings
Physica Status Solidi (b), 1– 3 (2009) / DOI 10.1002/pssb.200880663
[OPTO-50] D. Lagarde, A. Balocchi, H. Carrère, P. Renucci, T. Amand, S. Founta, H. Mariette, X. Marie
Exciton spin dynamics in zinc-blende GaN/AlN quantum dot : temperature dependence
Microelectronics Journal, 40, 328 (2009)
INV
(Conférences données à l‘invitation du Comité d‘organisation dans un congrès national ou international)
2005
[OPTO-51] P.-F. Braun, X. Marie, L. Lombez, B. Urbaszek, T. Amand, P. Renucci, V. K. Kalevich,
K.V.Kavokin, O. Krebs, P. Voisin
OPTO/Appendix - 87
Electron Spin Relaxation Induced by Nuclei in Quantum Dots in time resolved photoluminescence
experiments
12th International Conference on Narrow Gap Semiconductors,
Toulouse, 3-7 Juillet 2005
Inst. Phys. Conf. Ser. 187, 501 (2006) Ed. J. Kono and J. Léotin
[OPTO-52] P.-F. Braun, L. Lombez, X. Marie, B. Urbaszek, T. Amand, P. Renucci, J.-L. Gauffier, V.K.
Kalevich, K.V. Kavokin, O. Krebs, and P. Voisin,
Spin dynamics of electrons and holes in p-doped InAs/GaAs quantum dots
12th Brazilian Workshop on Semiconductor Physics, 4-8 Avril 2005,
Sao José dos Campos, SP, Brésil
Brazilian Journal of Physics, 36, n°1B, (2006)
[OPTO-53] H. Carrère, X. Marie, L. Lombez, T. Amand
Optical Telecommunication at 1,3 and 1,55 m using dilute nitride III-V semiconductors
International Conference on Transparent Optical Networks, Barcelona, 3-7 July 2005, Spain
7th
IEEE 2005 7th International Conference on Transparent Optical
Networks, Vol 2, Proceedings: 250-254 (2005)
[OPTO-54] X. Marie
Optical and spin coherence in semiconductor nanostructures
Ecole européenne ―Spintronics‖
Cargèse, 23 Mai-4 Juin,
[OPTO-55] X. Marie, (cours invité)
Ecole thématique du CNRS : Le spin dans les semiconducteurs: physique et applications
Cargèse, 2 – 7 Octobre 2005
[OPTO-56] X. Marie
Dynamique de spin dans les nanostructures semiconductrices
Journées des Phénomènes Ultra-Rapides , Lille, 5-7 décembre 2005
2006
[OPTO-57] T.Amand, P.-F. Braun, X. Marie, L. Lombez, B. Urbaszek, P. Renucci,
O. Krebs, B. Eble, P. Voisin, K. Kavokin, V. Kalevich
Spin dynamics in semiconductor quantum dots: optical pumping and hyperfine interaction
French-US Workshop on Spintronics,
Saint Pierre de Chartreuse, 12-14th June, 2006
[OPTO-58] T.Amand, P.-F. Braun, X. Marie, L. Lombez, B. Urbaszek, P. Renucci,
O. Krebs, B. Eble, P. Voisin, K. Kavokin, V. Kalevich
Spin Physics in InAs/GaAs quantum dots by optical pumping : the role of exchange and hyperfine
interactions
3rd French-Russian Workshop on Nanosciences and Nanotechnologies
St Petersburg, Russia, 21-23 June, 2006
[OPTO-59] P.-F. Braun, L. Lombez, X. Marie, B. Urbaszek, T. Amand, P. Renucci, D. Lagarde,
V. K. Kalevich, K. V. Kavokin, O. Krebs, and P. Voisin,
Direct observation of the electron spin relaxation induced by nuclei in quantum dots,
SPIE Optoelectronics'06, 23-25 Janvier 2006, San Jose, Californie (USA),
Ultrafast Phenomena in Semiconductors and Nanostructure Materials X,
OPTO/Appendix - 88
Kong Thon Tsen, Jin-JOO Song, Hongxing Jiang Chairs/Editors,
Proceedings of SPIE Vol. 6118, 61180Q (2006)
[OPTO-60] X. Marie
Spin dynamics and hyperfine interaction in semiconductor quantum dots
8th conference on Nonlinear Optics and Excitation Kinetics in Semiconductors (NOEKS)
Münster, Germany, 20-26 February 2006
[OPTO-61] X. Marie
Spin properties in semiconductor nanostructures
Colloque franco-japonais
Sapporo, Japon, 4-10 March 2006
[OPTO-62] X. Marie
Spin dynamics in dilute nitride semiconductors
E-MRS, Varsovoe, Pologne, 4-7 Septembre 2006
[OPTO-63] X. Marie
Interaction hyperfine dans les boîtes quantiques semiconductrices
Conference Daniel Dautreppe
Grenoble, 25-27 Septembre 2006
[OPTO-64] X. Marie
Spin manipulations in quantum dots
International Workshop on Quantum-Dot Spintronics
Bochum, Germany, 7-9 Décembre 2006
[OPTO-65] H. Carrère, L. Lombez, X. Marie, T. Amand
Optical gain of InGaAsN/InGaAsP/InP strained quantum wells for 1.55µm applications
COST 288 meeting,
Nottingham, GB, June 22-23 2006
2007
[OPTO-66]
X. Marie
Optical gain in GaAsN and InGaAsN lasers
European MRS Spring meeting
Strasbourg, 28-30 Mai 2007
[OPTO-67]
X. Marie
Spin dynamics in GaAsN and InGaAsN Structures
Colloque Franco-Russe
Autran, 10-12 Octobre 2007
[OPTO-68]
X. Marie, D. Lagarde, H. Carrère, L. Lombez, T. Amand, J.-C. Harmand
Spin dependent recombination in dilute nitride semiconductors
1st Chinese-French Workshop on Quantum Manipulation of Spins in Semiconductors
Beijing (China), 15-17 Octobre 2007
[OPTO-69]
B. Urbaszek, P.-F. Braun, T. Amand, X. Marie, O. Krebs, A. Lemaitre and P. Voisin,
Nuclear spin dynamics in InAs quantum dots
1st Chinese-French Workshop on Quantum Manipulation of Spins in Semiconductors, Beijing (China), 1517 Octobre 2007
[OPTO-70]
P. Renucci, L. Lombez, D. Lagarde, T. Amand, X. Marie, B. L. Liu,
OPTO/Appendix - 89
Electrical spin injection in quantum wells and quantum dots
1st Chinese-French Workshop on Quantum Manipulation of Spins in Semiconductors
Beijing (China), 15-17 Octobre 2007
2008
[OPTO-71]
T.Amand, X. Marie, B. Urbaszek, O. Krebs
Spin dynamics in semiconductor quantum dots: optical pumping and hyperfine interaction
International Workshop on Spin Physics in Semiconductors
Montpellier, 13th -16th May, 2008
[OPTO-72]
X. Marie, T. Amand
Spin dynamics in dilute nitride semiconductors
International Workshop on Spin Physics in Semiconductors
Montpellier, 13th -16th May, 2008
[OPTO-74]
D. Lagarde, A. Balocchi, H. Carrère, P. Renucci, T. Amand, X. Marie,
Room temperature exciton spin dynamics in zinc-blende GaN Quantum dots
29th International Conference on the Physics of Semiconductors 2008,
Rio de Janeiro, Brazil, July 27th - August 1st 2008
[OPTO-75]
B. Urbaszek, T. Amand, T. Belhadj, C.-M. Simon, T. Kuroda, T. Mano, K. Sakoda, N.
Koguchi, O. Krebs, A. Lemaitre, P. Voisin, and X. Marie
Manipulating an single spin in a single quantum dot through optical control of the hyperfine interaction
with nuclear spins
15th International Conference on Superlattices, Nanostructures and Nano devices
Natal, Brazil, 3rd – 8th August 2008
[OPTO-76]
X. Marie, O. Krebs, B. Urbaszek, T. Belhadj, C.-M. Simon, A. Lemaitre, P. Voisin, and T.
Amand
Optical initialisation and control of carrier and nuclear spins in individual semiconductor quantum dots
SPIE Optics and Photonics,
12th – 14th August 2008, San Diego, CA (USA), Proceedings of SPIE (sous presse)
[OPTO-77]
X. Marie
Spin Physics in Semiconductors
Lectures (4h) at the Spin-electronics Summerschool
14-17 September 2008, Goslar – Hannover (Germany)
[OPTO-78]
X. Marie, T. Belhadj, PF Braun, CM Simon, B. Urbaszek,T. Amand, O. Krebs, A.
Lemaître, P. Voisin
Spin Dynamics of electrons, holes and nuclei in quantum dots
International Workshop on « Spin Phenomena in reduces dimensions‖, 24-26 September 2008 ,
Regensburg (Germany)
[OPTO-79]
X. Marie
Dynamique de spin dans les structures semiconductrices
FEMTO 2008, École technologique « Optique et phénomènes ultra-rapides », Mittelwihr (Haut-Rhin) ; 30
septembre - 3 octobre 2008
[OPTO-80]
X. Marie
Electron and Nuclear spin dunamics in quantum dots
Séminaire Invité, October 30th, 2008 ; University of Wuhan (China)
OPTO/Appendix - 90
[OPTO-81]
X. Marie, B. Urbaszek, T. Amand, O. Krebs, A. Lemaître, P. Voisin
Optical pumping of nuclear spins in semiconductor quantum dots
5th bilateral russian-french workshop on Nanosciences and Nanotechnologies
Moscow, GPI RAS, December, 1-2, 2008
2009
[OPTO-82]
X. Marie, P. Renucci, A. Balocchi, T. Amand, B. Urbaszek
Optical and electrical spin injection in semiconductor quantum dots
Conference Nanospain , 9-12 March 2009, Zaragoza (Spain)
[OPTO-83]
X. Marie,
Electron and Hole Spin Dynamics in Semiconductor Quantum Dots ;Effects of Hyperfine Interaction
Spring Meeting 2009 of the German Physical Society ; 22-27 March 2009, Dresden (Germany)
[OPTO-84]
T.Amand,
Dynamique des systèmes de spin couplés électron-noyaux dans les boîtes quantiques à base de matériaux
III-V
Journée Nationale Boîtes Quantiques
Grenoble, 18 Juin 2009
ACTI
(Communications avec actes dans un congrès international)
2005
[OPTO-85]
B. Salem, G. Guillot, T. Benyattou, C. Bru-Chevallier, G. Bremond, C. Monat, M. Gendry,
A. Jbeli, X. Marie, T. Amand
Optical transitions and carrier dynamics in self organized InAs quantum islands grown on InP(001)
SPIE Conference on Quantum Dots, Nanoparticles, and Nanoclusters II, 24-25 Janvier 2005,
San Jose, Californie (USA)
Quantum Dots, Nanoparticles, and Nanoclusters II, Ed D. L. Huffaker, P. K. Battacharya
Proceedings of SPIE, 5734, 27-30 (2005)
[OPTO-86]
H. Carrère, X. Marie, J. Barrau, T. Amand,
Band structure and optical gain of InGaAsN/GaAsP/GaAs strained quantum wells,
4th International Conference on Superlattices, Nanostructures, and Nanodevices, Cancun (Mexique),
19-23 Juillet 2004,
Physica Status Solidi (c) 2, 3023-3026 (2005)
[OPTO-87]
P.-F. Braun, X. Marie, L. Lombez, B. Urbaszek, T. Amand, P. Renucci, V.K. Kalevich,
K.V. Kavokin, O. Krebs, P. Voisin and Y. Masumoto
Direct observation of the electron spin dephasing induced by nuclei in InAs/GaAs quantum dots
13th International Symposium on Nanostructures : Physics and Technology, 20-25/06/2005,
Saint Péterbourg (Fédération de Russie)
Proceedings of ISNPT, Editions A. F. Ioffe , p. 45 (2005)
[OPTO-88]
L. Lombez, P.-F. Braun, X. Marie, B. Urbaszek, P. Renucci, H. Carrère, T. Amand, J.-C.
Harmand, B. Sun, S. S. Li
Spin dynamics in dilute nitride semiconductors at room temperature
Toulouse, 3-7 Juillet 2005,
Inst. Phys. Conf. Ser. 187, 495 (2006) ed. J. Kono and J. Léotin
2006
OPTO/Appendix - 91
[OPTO-89]
B. Eble, O. Krebs, A. Lemaître, K. Kowalik, A. Kudelski,
B. Urbaszek, X. Marie, T. Amand and P. Voisin
Spin physics in charge-controlled InAs-GaAs single quantum dots: optical pumping and hyperfine
interaction
14th International Symposium on Nanostructures : Physics and Technology, 26-30/06/2006,
Saint Péterbourg (Fédération de Russie)
Proceedings of ISNPT, Editions A. F. Ioffe (2006)
[OPTO-90]
B. Urbaszek, T. Amand, X. Marie, and P. Voisin
Charge-controlled nuclear polarization of a single InAs/GaAs quantum dot under optical pumping
4th International Conference on Semiconductor Quantum Dots
Chamonix-Mont Blanc, May 1-5 2006
Physica Status Solidi (c) 3, 3752 (2006)
[OPTO-91]
L. Lombez, P.-F. Braun, P. Renucci, O. Krebs, D. Lagarde, B. Urbaszek,
T. Amand, X. Marie, P. Voisin
Electron spin quantum beats in positively charged InAs quantum dots
ICPS 2006, Vienna, Austria, July 24-28 2006
Actes (CD ROM de la conférence).
[OPTO-92]
D. Lagarde, L. Lombez, H. Carrère, P. Renucci, T. Amand, X. Marie,
Zeng Mia Mei, Xiao Long Du, and Qi Kun Xue
Exciton Spin Dynamics in ZnO
Vienna, Austria, July 24-28 2006
[OPTO-93]
B. Urbaszek, X. Marie, T. Amand, and P. Voisin
Dynamic nuclear polarization of a single InAs/GaAs quantum dot : positive versus negative trions
[OPTO-94]
V. K. Kalevich, E. L. Ivchenko, A. Yu. Shiryaev, A. Yu. Egorov,
L. Lombez, D. Lagarde, X. Marie, and T. Amand
Spin dynamics controlled by spin-dependent recombination in GaAsN alloys at room temperature
Physics of Semiconductors, Pts A and B, Ed.: W. Jantsch; F. Schaffler. Book Series:
AIP Conference Proceedings 893, 1309-1310 ( 2007)
2007
[OPTO-95]
D. Lagarde, L. Lombez, A. Balocchi, P. Renucci, H. Carrère, T. Amand, X. Marie
Z. X. Mei, X. L. Du, Q. K. Xue
Exciton spin dynamics in ZnO epilayer
14th International Conference on Superlattices, Nano-structures, and Nano-devices,
Istanbul (Turquie), 30 Juillet-4 Août 2006
Physica Status Solidi (c), 4, 472 (2007)
[OPTO-96]
L. Lombez, D. Lagarde, P. Renucci, T. Amand, X. Marie
B. L. Liu, W. X. Wang, Q. K. Xue, D. M. Chen
OPTO/Appendix - 92
Optical spin orientation in (110) GaAs quantum wells at room temperature
[OPTO-97
P. Gallo, L. Lombez, A. Bournel, T. Amand, T. Camps, X. Marie, E. Havard, C. Fontaine,
and A. Arnoult
Magnetic electrodes in the onion state for spin injection into semiconductors
[OPTO-98]
L. Lombez, P.-F. Braun, P. Renucci, P. Gallo, H. Carrère, P. H. Binh, X. Marie,T. Amand,
J. L. Gauffier, B. Urbaszek, A. Arnoult, C. Fontaine, C. Deranlot, R. Mattana, and H. Jaffres
Electrical spin injection in InAs/GaAs p-doped quantum dots through Co/Al2O3/GaAs tunnel barrier
[OPTO-99]
Y. Sun, L. Lombez, P.-F. Braun, B. Ulug, A. Ulug, M. Yilmaz, N. Balkan, X. Marie, H.
Carrère, A. Arnoult
Time-resolved photoluminescence and steady-state optical studies of GaInNAs and GaInAs single quantum
wells
Physica Status Solidi (c): Current Topics in Solid State Physics, 4, (2), 667-670 (2007)
COM et AFF
(Communications orales sans actes ou par affiche dans un congrès international ou national)
2005
[OPTO-100] L. Lombez, P. Gallo, P.-F. Braun, P. Renucci, H. Carrère, X. Marie, T. Amand, A. Arnoult,
C. Fontaine
Electrical spin injection in InAs/GaAs quantum dots
[OPTO-101] H. Carrère, X. Marie, J. Barrau, T. Amand
InGaAsN/GaAsP and InGaAsN/InAsP QW structures for 1.3 and 1.55 µm lasers
[OPTO-102] L. Lombez, P.-F. Braun, X. Marie, B. Urbaszek, T. Amand, J.-C. Harmand, B. Sun
Spin dynamics in dilute nitride semiconductors at room temperature
12th International Conference on Narrow Gap Semiconductors, 3-7/07/2005,
Toulouse (France)
[OPTO-103] L. Lombez, P. Gallo, P.-F. Braun, P. Renucci, H. Carrère, X. Marie, T. Amand, A. Arnoult,
C. Fontaine,
Electrical Spin injection in InAs/GaAs quantum dots
(affiche)
OPTO/Appendix - 93
International School NanoSciencesTech, Cargese, (France), August 2005
[OPTO-104] P.-F. Braun, B. Eble, L. Lombez, B. Urbaszek, X. Marie, T. Amand, P. Renucci, O. Krebs,
P. Voisin, V. K. Kalevich, K. V. Kavokin
Electron spin orientation in InAs/GaAs Quantum dots : the role of Hyperfine interaction
9th International Conference on Optics of excitons in Confined Structures, 5-9/09/2005,
Southampton (Royaume Uni)
[OPTO-105] B. Eble, O. Krebs, A. Lemaître, B. Urbaszek, T. Amand, X. Marie and P. Voisin
Dynamical polarisation of nuclei in a single InAs/GaAs quantum dot under optical orientation of charged
excitons
[OPTO-106] S. Laurent, O. Krebs, B. Urbaszek, M. Sénès, T. Amand, X. Marie, and P. Voisin
Negative circular polarisation of N-doped InAs-GaAs self assembled quantum dots under non resonant
optical excitation: a general property
2006
[OPTO-107] P.Gallo, L. Lombez, A. Arnoult, D. Lagarde, T. Camps, C. Fontaine, X. Marie, P. Renucci,
H. Carrère, T. Amand, J.-L. Gauffier, P. H. Binh and H. Jaffrès
Electrical spin injection in p doped InAs/GaAs quantum dots based SpinLED
Chamonix-Mont Blanc, May 1-5 2006
[OPTO-108] P.-F. Braun, X. Marie, L. Lombez, P. Renucci, O. Krebs, D. Lagarde, B. Urbaszek, T.
Amand, and P. Voisin,
Electron spin dephasing induced by the nuclear spins in charged quantum dots
[OPTO-109] H. Carrère, L. Lombez, T. Amand, X. Marie
Gain calculation in InGaAsN/InAsP/InP strained quantum well lasers emitting at 1.55 µm
[OPTO-110] L. Lombez, D. Lagarde, P. Renucci, T. Amand, X. Marie, B. L. Liu, W. X. Wang, Q. K.
Xue, D. M. Chen,
Contrôle optique de l’orientation de spin dans des puits quantiques GaAs (110) à température ambiante
10èmes Journées de la Matière Condensée,
Toulouse, 28 Août-1er Septembre 2006
[OPTO-111] L. Lombez, P.-F. Braun, P. Renucci, D. Lagarde, B. Urbaszek, X. Marie, T. Amand, O.
Krebs, P. Voisin,
Dynamique des cohérences de spin du trion dans les boîtes quantiques d’InAs chargées positivement
[OPTO-112] P.-F. Braun, B. Urbaszek, T. Amand, L. Lombez, D. Lagarde, Phi Hoa Binh, X. Marie,
B. Eble, A Lemaître, O. Krebs,
Spectroscopie Optique sur une boîte quantique unique
OPTO/Appendix - 94
[OPTO-113] D. Lagarde, L. Lombez, H. Carrère, P. Renucci, T. Amand, X. Marie,
Z. X. Mei, X. L. Du, Q. K. Xue,
Dynamique de spin de l’exciton dans ZnO épitaxié mesurée par photoluminescence résolue en temps
(Communication orale)
[OPTO-114] A. Balocchi, D. Lagarde, L. Lombez, P. Renucci, H. Carrère, T. Amand, X. Marie, Z. X.
Mei , X. L. Du , and Q.K. Xue
Optical Orientation Measurements Of Excitons in ZnO
4th International Workshop on ZnO and Related Materials
Giessen, 3-6 Octobre 2006 (Allemagne)
[OPTO-115] L. Lombez, P. Renucci, P. Gallo, P.-F. Braun, H. Carrère, P. H. Binh, X. Marie, T. Amand,
B. Urbaszek, J.-L. Gauffier, T. Camps, A. Arnoult, C. Fontaine, C. Deranlot, R. Mattana, H. Jaffrès, and J.
M. George
Injection électrique de spin dans des boîtes quantiques dopées p à travers une barrière tunnel
Réunion Finale du GdR SESAME
Palaiseau, 23-24 Novembre 2006
[OPTO-116] B. Urbaszek, P.-F. Braun, T. Amand, et X. Marie, O. Krebs, B. Eble, A. Lemaître, et P.
Voisin
Bistabilité de la polarisation de spin des noyaux dans une boîte quantique unique induite par pompage
optique
[OPTO-117] D. Lagarde, L. Lombez, H. Carrère, P. Renucci, T. Amand, X. Marie, Z. X. Mei, X. L. Du,
Q. K. Xue
Mesure de la dynamique de spin de l’exciton dans ZnO épitaxié par photoluminescence résolue en temps
2007
[OPTO-118] L. Lombez, P. Renucci, P. Gallo, P.F. Braun, H. Carrère, P.H. Binh, X. Marie, T. Amand,
B. Urbaszek, J.L. Gauffier, T. Camps, A. Arnoult, C. Fontaine, C. Deranlot,
R. Mattana, H. Jaffrès and J.-M. George,
Injection électrique de spins dans des boîtes quantiques semi-conductrices
Colloque Louis Néel Lyon, 14-15 mars 2007
[OPTO-119] P. Renucci, L. Lombez, P. Gallo, H. Carrère, P. Hoa Binh, X. Marie, T. Amand, A.
Arnoult, C. Fontaine, C. Deranlot, R. Mattana, H. Jaffres, J. -M. George,
Injection et détection électrique d’électrons polarisés en spin dans des structures hybrides métal/semiconducteur
(communication orale),
ANR MOMES Rencontre à mi-parcours :
Cirque de Saint Même – Chartreuse (France), 9-10 Juillet 2007
[OPTO-120]
T. Amand,
OPTO/Appendix - 95
Propriétés de spin et porteurs localisés dans des nano-objets
ANR MOMES Rencontre à mi-parcours :
Cirque de Saint Même – Chartreuse, 9 - 10 juillet 2007
2008
[OPTO-121] B. Urbaszek, P.-F. Braun, T. Amand, O. Krebs, T. Belhadj, A. Lemaitre, P. Voisin, and X.
Marie,
Temperature dependence of the dynamical nuclear polarization in single InAs quantum dots
(Affiche)
Gyeongju (Corée du Sud), 11th - 16th May 2008
[OPTO-122] O. Krebs, A. Lemaitre, P. Voisin, B. Urbaszek, X. Marie, T. Amand,
Electron-nuclei flip-flop mediated spin cooling of a single spin in an InAs quantum Dot,
[OPTO-123] D. Lagarde, A. Balocchi, H. Carrère, P. Renucci, T. Amand, X. Marie,
S. Founta, and H. Mariette
Exciton spin dynamics in cubic GaN/AlN quantum dots at room temperature
[OPTO-124] T. Belhadj, O. Krebs, T. Amand, T. Kuroda, C.-M. Simon, X. Marie, B. Urbaszek
Non linearity, bistability and strong feedback: tuning the effects of hyperfine interaction between electron
and nuclear spins in single quantum dots
9th International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors
Klink/Müritz (Allemagne), 26th – 29th May 2008
[OPTO-125] D. Lagarde, A. Balocchi, H. Carrère, P. Renucci, T. Amand, X. Marie,
S. Founta, and H. Mariette
Optical alignment of exciton in cubic GaN quantum dots
(Affiche)
9th International Workshop on Nonlinear Optics and Excitation Kinetics in Semiconductors
Klink/Müritz (Allemagne), 26th – 29th May 2008
[OPTO-126] D. Lagarde, A. Balocchi, L. Lombez, H. Carrère, P. Renucci, T. Amand, X. Marie, Z. X.
Mei, X. L. Du, Q. K. Xue,
Donor-bound exciton spin dynamics in ZnO epilayers
E-MRS Spring Meeting,
Strasbourg, 26th – 30th May 2008
[OPTO-127] B. Eble, C. Testelin, P. Desfonds, F. Bernardot, A. Balocchi, T. Amand, A. Miard, A.
Lemaître, X. Marie, M. Chamarro
Hole nuclear spin interaction in quantum dots
OPTO/Appendix - 96
[OPTO-128]
D. Lagarde, A. Balocchi, H. Carrère, P. Renucci, T. Amand, X. Marie, Z. X. Mei, L. Du,
Q. K. Xue
Optical measurement of exciton and hole spin relaxation in ZnO
(Affiche)
[OPTO-129] V. G. Truong, P. Renucci, L. Lombez, Y. Lu, H. Jaffres, X. Marie, J.-M. George, A.
Lemaitre, P. Gallo, P. H. Binh, T. Amand, C. Fontaine
Electrical injection and detection of spin polarized currents through MgO and Al2O3 tunnel barriers in
metal/semiconductor hybrid heterostructures
(Affiche)
[OPTO-130] M. Tran, Y. Lu, H. Jaffrès, C. Deranlot, J. M.George, A. Fert, V. G. Truong,
P. Renucci, X. Marie, T. Amand, A. Lemaitre, P. Gallo, A. Arnoult, C. Fontaine,
Electrical Injection and Detection of Spin currents in GaAs Through MgO and Alumina Barriers,
Fifth International Conference on Physics an Applications of Spin-related Phenomena in Semiconductors
(PASPS V )
Foz do Iguaçu, Brazil, August 3rd - 6th, 2008
[OPTO-131] B. Eble, C. Testelin, P. Desfonds, F. Bernardot, A. Balocchi, T. Amand, A. Miard, A.
Lemaitre, X. Marie, M. Chamarro,
Hole-Nuclear spin interaction in quantum dots
[OPTO-132] H. Carrère, X. Marie, V. G. Truong, T. Amand, B. Urbaszek,
B. Rousseau, F. Lelarge, and R. Brenot
Strained InGaAsP multi quantum-well structures for InP-based wide linewidth and polarization insensitive
semiconductor optical amplifiers
(Affiche)
[OPTO-133] P. Desfonds, B. Eble, C. Testelin, F. Bernardot, X. Marie, A. Balocchi, T. Amand, A.
Lemaître M. Chamarro
Interaction trou spin nucléaire dans les boîtes quantiques d’InAs/GaAs dopée
Strasbourg, 25-29 Août 2008
[OPTO-134] T. Belhadj, T. Kuroda, T. Mano, B. Urbaszek, T. Amand, X. Marie, K. Sakoda, N.
Koguchi,
Magneto-photoluminescence in GaAs droplet epitaxial single quantum rings
OPTO/Appendix - 97
[OPTO-135] C.-M. Simon, T. Belhadj, T. Kuroda, T. Amand, N. Koguchi, P. Renucci, B. Chatel, P.
Sellenart, A. Lemaitre, X. Marie, B. Urbaszek
Orientation optique dans les boîtes quantiques non contraintes GaAs/GaAlAs élaborées par deux
techniques différentes d’épitaxie par jets moléculaires
(Affiche)
[OPTO-136] F, Zhao,A. Ballochi, D. Lagarde, T. Amand, X. Marie, J.-C. Harmand
Dynamique de spin dans les semiconducteurs nitrures dilués
(Affiche)
[OPTO-137] M. Tran, Y. Lu, H. Jaffrès, C. Deranlot, J. M.George, A. Fert, V. G. Truong, P. Renucci, X.
Marie, T. Amand, A. Lemaitre,
Injection et détection électrique courants polarisés en
spin dans une structure Metal
ferromagnétique/MgO/semiconducteur,
11ème Journées de la matière Condensée, Université Louis Pasteur,
Strasbourg, 25-29 août 2008
[OPTO-138] B. Urbaszek, P-F. Braun, T. Amand, O. Krebs, T. Belhadj, A. Lemaître, P. Voisin, and X.
Marie
Temperature dependence of the dynamical nuclear polarisation in single InAs quantum dots
(Affiche)
Semiconductor Spinelectronics Summerschool of the DFG, Priority Program SPP 1285,
Goslar, Germany, 14-17 Septembre 2008
[OPTO-139] C.-M. Simon, T. Belhadj, X. Marie, T. Amand, B. Urbaszek, T. Kuroda, T. Mano, K.
Sakoda,
Optical pumping of electron and nuclear spins in strain free GaAs quantum dots
Semiconductor Spin electronics Summerschool of the DFG, Priority Program SPP 1285,
Goslar, Germany, 14-17 Septembre 2008
[OPTO-140] M. Tran, Y. Lu, H. Jaffrès, C. Deranlot, J.-M. George, A. Fert, V.G. Truong,
P. Renucci, X. Marie, T. Amand, Y. Zheng, D. Demaille, A. Lemaître
Injection et détection électrique de courants polarisés en spin dans des structures hybrides
métal/semiconducteur
Colloque Louis Néel,
La Grande Motte, 30 Septembre-2 Octobre 2008
2009
[OPTO-141] C.-M. Simon, B. Chatel, P. Renucci, T. Belhadj, B. Urbaszek, T. Amand and X. Marie
Vers des manipulations cohérentes en phase condensée: des systèmes atomiques au nano-objet
semiconducteur unique
(Affiche)
Impulsions femtosecondes : des concepts fondamentaux aux applications
OPTO/Appendix - 98
Ecole de physique,
Les Houches, 12-16 Janvier 2009
OS
(ouvrages scientifiques, ou chapitres de ceux-ci)
2005
[OPTO-142] Femtosecond Laser Pulses, principle and experiment, Second Edition :
T. Amand, X. Marie,
Ch.5 : Pulsed Semiconductor Lasers (47 pages, 39 figures, révision de la pemière édition)
C. Rullière, T. Amand and X. Marie
Ch. 8: Spectroscopic Methods for Analysis of Sample Dynamics (58 pages, 42 figures, révision),
T. Amand, V. Blanchet, B. Girard and X. Marie,
Ch. 11: Coherent control in atoms, molecules and solids, (61 pages, 35 figures, nouveau chapitre)
édité par C. Rullière,
Springer Verlag Berlin-Heidelberg-New York, deuxième édition, 2005.
2007
[OPTO-143]
“Semiconductor quantum bits”
B. Urbaszek, T. Amand, O. Krebs, P. Renucci, and X. Marie
Chap. 9 : Spin Quantum-bits and Decoherence in InAs/GaAs Quantum Dots
(24 pages, 10 figures)
édité par F. Henneberger, O. Benson, Pan Stanford Publishing - World Scientific (2009)
2008
[OPTO-144] Dilute III-V Nitride Semiconductors and Material Systems
Physics and Technology
X. Marie, D. Lagarde, V. Kalevich, and T. Amand
Chap. 11: Spin dynamics in dilute nitride (16 pages, 9 figures)
Édité par A. Erol,
Springer Series in Material Science 105, Springer Berlin-Heidelberg-New York
[OPTO-145]
Spin physics in semiconductor nanostructures
T. Amand and X. Marie
Chap. 3: Exciton spin dynamics in Semiconductor Quantum Wells (32 pages, 20 figures)
X. Marie, B. Urbaszek, O. Krebs, and T. Amand
Chap. 4: Exciton spin dynamics in Semiconductor quantum dots (26 pages, 11 figures)
OPTO/Appendix - 99
édité par M. Dyakonov,
Springer Series in Solid-State Science 157, Springer Verlag Berlin-Heidelberg
2009
[OPTO-146]
Spintronic semiconductors
P. Renucci, H. Jaffres, J.-M. George, T. Amand, and X. Marie
Chap.: Electrical spin injection in hybrid ferromagnetic metal/semiconductor structures and
Spin-light emitting diodes (34 pages, 12 figures)
édité par W. M. Chen and I. A. Buyanova,
Pan Stanford Publishing - World Scientific 2009 (sous presse)
SEMINAIRES INVITES
2005
[OPTO-147]
X. Marie
Pompage optique orienté dans le sboîtes quantiques semiconductrices
Institut des Nanosciences de Paris, 14 mars 2005
[OPTO-148]
X. Marie
InGaAsN/GaAs and InGaAsN/InP quantum well diode lasers
Université d'Essex (GB), 23 mars 2005
[OPTO-149]
X. Marie
Spin dynamics in quantum dots
National Institute of Material Science, Tsukuba (Japon), 24 avril 2005
[OPTO-150]
X. Marie
Nanostructures semiconductrices et spintronique
Séminaire de la Socité Française de Physique, 16 décembre 2005, Toulouse
[OPTO-151] T. Amand,
Spin manipulations in neutral and charged quantum dots
Key State Laboratory for Superlattices and Microstructures, 7 Mars 2005 Beijing, Chine
[OPTO-152] P. Renucci
Coherent Polariton Spin states in semiconductor microcavities
Key State Laboratory of Surface Physics, 3 mars 2005 Beijing, Chine
2007
[OPTO-153]
X. Marie
Hyperfine interaction in semiconductor quantum dots
Institute of Physics, Pékin, 22 janvier 2007
[OPTO-154]
X. Marie
Spin Dependent Recombinatation in GaAsN
University of Southampton, 13 juin 2007
[OPTO-155]
X. Marie
OPTO/Appendix - 100
Nuclear spin dynamics in quantum dots
University of Science and Technology of China, Heifei, 19 octobre 2007
[OPTO-156]
X. Marie
Spin Dependent Recombination in semiconductors
University of Science and Technology of China, Heifei, 20 octobre 2007
Spin physics in semiconductor quantum dots: The role of Coulomb exchange and hyperfine interaction
Universität Regensburg - Fakultät für Physik, Physikalisches Kolloquium WS06/07,
29 Janvier 2007, Regensburg (Allemagne)
[OPTO-158] B. Urbaszek
Hyperfinewechselwirkung zwischen 100000 Kernspins und dem Spin eines Leitungsbandelektrons in einem
Quantenpunkt,
Center for Functional Nanostructures, University of Karlsruhe (Germany), June 2007
2008
Nuclear Quadrupolar effects in semiconductors
Laboratoire de Photonique et Nanostructures,
25 Juin 2008, Marcoussis
Spin physics in semiconductor quantum dots : nuclear effects
Eidgenössische Technische Hochschule Zürich (ETH Zurich)
4 Juin 2008, Zurich (Suisse)
2009
[OPTO-161] B. Urbaszek
Optical manipulation of one electron spin and an ensemble of nuclear spins in a quantum dot,
IRSAMC, Université Paul Sabatier,
Février 2009, Toulouse
DIVERS
(Organisation de colloques nationaux ou internationaux …)
12th International Conference on Narrow Gap Semiconductors (co-organisée avec le LNCMP), 3-7 Juillet
2006, Toulouse. Comité de Programme: T. Amand ; Comité d‘Organisation : X. Marie
Actes publiés par IOP (2006) et diffusé par CRC Press (Ed. : J. Kono &J. Léotin)
Premier Workshop Franco-Chinois « Quantum Manipulation of spins in semiconductors »
15-17 octobre 2007, Institute of Physics, Beijing, Chine.
Chairmen : X. Marie (LPCNO), D. Chen (IOP)
11emes Journées de la Matière Condensée de la Société Française de Physique (JMC11) ; 25-29 Août 2008.
Co-organisation du mini-colloque « Dynamique de spin et d‘aimantation » ; X. Marie, T. Amand
OPTO/Appendix - 101
MPC
« Physical and Chemical Modelling » group
Equipe « Modélisation Physique et Chimique »
Preliminary comments and remarks:
Dr J.-P. Daudey passed away in October, 2008.
I. C. Gerber and L. Perrin have respectively joined the lab on September, 2007 and February,
2008. Their articles for the 2005-2007 period are nevertheless mentionned, as done in the
individual forms.
The MPC group was created on October, 2005.
Most of the articles published in 2005 by JPD, FJ, LM and RP correspond to the research
activities done at the Laboratoire de Physique Quantique de Toulouse (LPQ, UMR 5626). The LPQ
is still used in the address several of their 2006 publications.
Dr. G. Trinquier has been a member of the group from its creation to the autumn 2007, when he
came back to the Laboratoire de Chimie et Physique Quantiques de Toulouse (UMR 5626)
Overall, 41 articles are affiliated to the LPCNO among the 78 given below (Source: Web of
Science): 2 in 2006, 9 in 2007, 13 in 2008 and 17 in 2009.
ACL
2005
[MPC-01] E. Werkema, E. Messines, L. Perrin, L. Maron, O. Eisenstein, and R. Andersen
Hydrogen for fluorine exchange in CH4-xFx by monomeric [1,2,4-(Me3C)(3)C5H2](2)CeH :
Experimental and computational studies
J. Am. Chem. Soc. 127, 7781–7795 (2005).
[MPC-02] O. Soubias, F. Jolibois, S. Massou, A. Milon, and V. Reat
Determination of the orientation and dynamics of ergosterol in model membranes using uniform C-13
labeling and dynamically averaged C-13 chemical shift anisotropies as experimental restraints
Biophys. J. 89, 1120–1131 (2005).
[MPC-03] C. Raynaud, L. Maron, F. Jolibois, J. P. Daudey, P. Esteves, and A. Ramirez-Solis
Ab initio molecular dynamics : Plane waves vs. local basis - The role of energy cutoff on the convergence
of molecular properties
Chem. Phys. Lett. 414, 161–165 (2005).
[MPC-04] C. Raynaud, J. P. Daudey, L. Maron, and F. Jolibois
1,4-vs 1,3-prototropic mechanism for intramolecular double proton transfer reaction in monothiooxalic
acid. Theoretical investigation of potential energy surface
J. Phys. Chem. A 109, 9646–9652 (2005).
[MPC-05] A. Ramirez-Solis, R. Poteau, A. Vela, and J. P. Daudey
Comparative studies of the spectroscopy of CUCl2 : DFT versus standard ab initio approaches
J. Chem. Phys. 122, 164306 (2005).
[MPC-06] R. Poteau and G. Trinquier
All-cis cyclic peptides
J. Am. Chem. Soc. 127, 13875–13889 (2005).
MPC/Appendix - 103
[MPC-07] L. Maron, E. Werkema, L. Perrin, O. Eisenstein, and R. Andersen
Hydrogen for fluorine exchange in C6F6 and C6F5H by monomeric [1,3,4-(Me3C)(3)C5H2](2)CeH :
Experimental and computational studies
J. Am. Chem. Soc. 127, 279–292 (2005).
[MPC-08] F. Gutierrez, J. Trzcionka, R. Deloncle, R. Poteau, and N. Chouini-Lalanne
Absorption and solvatochromic properties of 2-methylisoindolin-1-one and related compounds : interplay
between theory and experiments
New. J. Chem. 29, 570–578 (2005).
[MPC-09] F. Gutierrez, C. Tedeschi, L. Maron, J. P. Daudey, J. Azema, P. Tisnes, C. Picard, and R.
Poteau
Quantum chemistry-based interpretations on the lowest triplet state of luminescent lanthanides complexes.
Part 2. Influence of the electrostatic interactions on the triplet state energy of terbium complexes
J. Mol. Struct. Theochem 756, 151–162 (2005).
[MPC-10] F. Gutierrez, C. Rabbe, R. Poteau, and J. P. Daudey
Theoretical study of Ln(III) complexes with polyaza-aromatic ligands : Geometries of [LnL(H2O)(n)](3+)
complexes and successes and failures of TD-DFT
J. Phys. Chem. A 109, 4325–4330 (2005).
[MPC-11] I. C. Gerber and J. Angyan
Hybrid functional with separated range
Chem. Phys. Lett. 415, 100–105 (2005).
[MPC-12] I. C. Gerber and J. Angyan
Potential curves for alkaline-earth dimers by density functional theory with long-range correlation
corrections
Chem. Phys. Lett. 416, 370–375 (2005).
[MPC-13] E. Fromager, L. Visscher, L. Maron, and C. Teichteil
On the accuracy of one-component pseudopotential spin-orbit calculations
J. Chem. Phys. 123, 164105 (2005).
[MPC-14] E. Fromager, C. Teichteil, and L. Maron
Atomic spin-orbit pseudopotential definition and its relation to the different relativistic approximations
J. Chem. Phys. 123, 034106 (2005).
[MPC-15] M. Delaforge, A. Pruvost, L. Perrin, and F. Andre
Cytochrome P450-mediated oxidation of glucuronide derivatives : Example of estradiol-17 betaglucuronide oxidation to 2-hydroxyestradiol-17 beta-glucuronide by CYP2C8
Drug Metab. Disp. 33, 466–473 (2005).
[MPC-16] J. Angyan, I. C. Gerber, A. Savin, and J. Toulouse
van der Waals forces in density functional theory : Perturbational long-range electron-interaction
corrections
Phys. Rev. A 72, 012510 (2005).
2006
[MPC-17] O. Soubias, F. Jolibois, A. Milon, and V. Reat
High-resolution C-13 NMR of sterols in model membrane
C. R. Chim. 9, 393–400, 19th GERM Congress, FRANCE, APR 04-08, 2005 (2006).
MPC/Appendix - 104
[MPC-18] M. Roger, N. Barros, T. Arliguie, P. Thuery, L. Maron, and M. Ephritikhine
U(SMes*)(n), (n=3, 4) and Ln(SMes*)(3) (Ln = La, Ce, Pr, Nd) : Lanthanide(III)/actinide(III)
differentiation in agostic interactions and an unprecedented eta(3) Ligation mode of the arylthiolate ligand,
from x-ray diffraction and DFT analysis
J. Am. Chem. Soc. 128, 8790–8802 (2006).
[MPC-19] C. Raynaud, R. Poteau, L. Maron, and F. Jolibois
Ab initio molecular dynamics simulation of the UV absorption spectrum of beta-ionone
J. Mol. Struct. Theochem 771, 43–50, 7th Triennial Conference of the World-Association-of-Theoreticaland-Computational-Chemists, Cape Town, SOUTH AFRICA, 2005 (2006).
[MPC-20] C. Raynaud, L. Perrin, and L. Maron
A DFT study of stannane dehydrocoupling catalyzed by Cp2LaH
Organometallics 25, 3143–3151 (2006).
[MPC-21] C. Raynaud, L. Maron, J. P. Daudey, and F. Jolibois
Berry pseudorotation mechanism for the interpretation of the F-19 NMR spectrum in PF5 by ab initio
molecular dynamics simulations
ChemPhysChem 7, 407–413 (2006).
[MPC-22] C. Raynaud, J. P. Daudey, F. Jolibois, and L. Maron
Ab initio dynamic study of the reaction of Cl2LaR (R = H, CH3) with H-2
J. Phys. Chem. A 110, 101–105 (2006).
[MPC-23] A. Ramirez-Solis, R. Poteau, and J. P. Daudey
The electronic spectrum of AgCl2 : Ab initio benchmark versus density-functional theory calculations on
the lowest ligand-field states including spin-orbit effects
J. Chem. Phys. 124, 034307 (2006).
[MPC-24] J. Paier, M. Marsman, K. Hummer, G. Kresse, I. C. Gerber, and J. Angyan
Screened hybrid density functionals applied to solids
J. Chem. Phys. 124, 154709 (2006).
[MPC-25] S. Ibrahim, A. Khvostov, M. Lappert, L. Maron, L. Perrin, C. Pickett, and A. Protchenko
An electrochemical and DFT study on selected beta-diketiminato metal complexes
Dalton Trans. pages 2591–2596 (2006).
[MPC-26] E. Fromager, C. Teichteil, and L. Maron
Extraction of shape-consistent spin-orbit pseudo-potential from an effective spin-orbit parameter and
application to the tellurium atom
Int. J. Quant. Chem. 106, 764–771, 5th European Conference on Computational Chemistry, La Londes les
Maures, FRANCE, JUN 15-20, 2004 (2006).
[MPC-27] C. Freund, N. Barros, H. Gornitzka, B. Martin-Vaca, L. Maron, and D. Bourissou
Enforced eta(1)-fluorenyl coordination to rhodium(I) with the [FluPPh(2)NPh](-) ligand
[MPC-28] Y. Carissan, F. Bessac, F. Alary, J. Heully, and R. Poteau
What can we do with an effective group potential?
Int. J. Quant. Chem. 106, 727–733, 5th European Conference on Computational Chemistry, La Londes les
Maures, FRANCE, JUN 15-20, 2004 (2006).
[MPC-29] N. Barros, O. Eisenstein, L. Maron, and T. D. Tilley
MPC/Appendix - 105
DFT investigation of the catalytic hydromethylation of alpha-olefins by metallocenes. 1. Differences
between scandium and lutetium in propene hydromethylation
[MPC-30] N. Barros, O. Eisenstein, and L. Maron
DFT studies of the methyl exchange reaction between Cp2M-CH3 or Cp* M-2-CH3 (Cp = C5H5,
Cp*=C5Me5, M = Y, Sc, Ln) and CH4. Does M ionic radius control the reaction?
[MPC-31] U. Baisch, M. Zeuner, N. Barros, L. Maron, and W. Schnick
Nanocrystalline lanthanide nitride materials synthesised by thermal treatment of amido and ammine
metallocenes : X-ray studies and DFT calculations
Chem. Eur. J. 12, 4785–4798 (2006).
[MPC-32] J. Angyan, I. C. Gerber, and M. Marsman
Spherical harmonic expansion of short-range screened Coulomb interactions
J. Phys. A : Math. Gen. 39, 8613–8630 (2006).
2007
[MPC-33] E. L. Werkema, L. Maron, O. Eisenstein, and R. A. Andersen
Reactions of monomeric [1,2,4-(Me3C)(3)C5H2](2)CeH and CO with or without H-2 : An experimental
and computational study
J. Am. Chem. Soc. 129, 2529–2541 (2007).
[MPC-34] J. Vignolle, H. Gornitzka, L. Maron, W. W. Schoeller, D. Bourissou, and G. Bertrand
Transient palladadiphosphanylcarbenes : Singlet carbenes with an “inverse” electronic configuration
(p(pi)(2) instead of sigma(2)) and unusual transannular metal-carbene interactions (pi(C -> Pd) donation
and sigma(Pd -> C) back-donation)
J. Am. Chem. Soc. 129, 978–985 (2007).
[MPC-35] M. Sircoglou, S. Bontemps, M. Mercy, N. Saffon, M. Takahashi, G. Bouhadir, L. Maron, and
D. Bourissou
Transition-metal complexes featuring z-type ligands : Agreement or discrepancy between geometry and
d(n) configuration?
Angew. Chem., Int. ed. Eng. 46, 8583–8586 (2007).
[MPC-36] V. Pradines, R. Poteau, and V. Pimienta
Amphiphilic organic ion pairs in solution : A theoretical study
ChemPhysChem 8, 1524–1533 (2007).
[MPC-37] R. Poteau and G. Trinquier
All-cis helical polypeptides
J. Org. Chem. 72, 8251–8258 (2007).
[MPC-38] L. Perrin, O. Eisenstein, and L. Maron
Chemoselectivity in sigma bond activation by lanthanocene complexes from a DFT perspective : reactions
of Cp(2)LnR (R = CH3, H, SiH3) with SiH4 and CH3-SiH3
New. J. Chem. 31, 549–555 (2007).
[MPC-39] P. Oulie, C. Freund, N. Saffon, B. Martin-Vaca, L. Maron, and D. Bourissou
Enforced eta(1)-fluorenyl and indenyl coordination to zirconium : Geometrically constrained and
sterically expanded complexes derived from the bifunctional (FluPPh(2)NAr)(-) and (IndPPh(2)NAr)(-)
ligands
MPC/Appendix - 106
[MPC-40] J. Maynadie, N. Barros, J.-C. Berthet, P. Thuery, L. Maron, and M. Ephritikhine
The crucial role of the f electrons in the bent or linear configuration of uranium cyanido metallocenes
[MPC-41] L. Maron and A. Ramirez-Solis
A new non-symmetric N(OH)(3) species : Comparison with the C-3 species and thermochemistry at the HF,
DFT, MP2, MP4 and CCSD(T) levels of theory
[MPC-42] L. Maron and A. Ramirez-Solis
New nonsymmetric P(OH)(3) species. Comparison with the C-3 isomer and themochemistry at the DFT,
MP2, and CCSD(T) levels of theory
J. Phys. Chem. A 111, 3173–3177 (2007).
[MPC-43] L. Maron and D. Bourissou
Lanthanide complexes of amino-carbenes : On the samarium-carbene bond from DFT calculations
[MPC-44] F. Jolibois, L. Maron, and A. Ramirez-Solis
Ab initio molecular dynamics evidence of a new stable symmetric C-s structure for N(OH)(3)
Chem. Phys. Lett. 435, 34–38 (2007).
[MPC-45] I. C. Gerber, J. G. Angyan, M. Marsman, and G. Kresse
Range separated hybrid density functional with long-range Hartree-Fock exchange applied to solids
J. Chem. Phys. 127, 054101 (2007).
[MPC-46] I. C. Gerber and J. G. Angyan
London dispersion forces by range-separated hybrid density functional with second order perturbational
corrections : The case of rare gas complexes
J. Chem. Phys. 126, 044103 (2007).
[MPC-47] N. Barros, D. Maynau, L. Maron, O. Eisenstein, G. Zi, and R. A. Andersen
Single but stronger UO, double but weaker UNMe bonds : The tale told by Cp2UO and Cp2UNR
2008
[MPC-48] M. Sircoglou, S. Bontemps, G. Bouhadir, N. Saffon, K. Miqueu, W. Gu, M. Mercy, C.-H. Chen,
B. M. Foxman, L. Maron, O. V. Ozerov, and D. Bourissou
Group 10 and 11 Metal Boratranes (Ni, Pd, Pt, CuCl, AgCl, AuCl, and Au+) Derived from a
Triphosphine-Borane
J. Am. Chem. Soc. 130, 16729–16738 (2008).
[MPC-49] I. del Rosal, L. Maron, R. Poteau, and F. Jolibois
DFT calculations of H-1 and C-13 NMR chemical shifts in transition metal hydrides
[MPC-50] L. Perrin, C. Aninat, V. Hamon, Y. Hayashi, C. Abadie, B. Heyd, F. Andre, and M. Delaforge
Metabolism of Phenylahistin Enantiomers by Cytochromes P450 : A Possible Explanation for Their
Different Cytotoxicity
Drug Metab. Disp. 36, 2381–2392 (2008).
MPC/Appendix - 107
[MPC-51] M. Ohashi, M. Konkol, I. del Rosal, R. Poteau, L. Maron, and J. Okuda
Rare-earth metal alkyl and hydride complexes stabilized by a cyclen-derived [NNNN] macrocyclic
ancillary ligand
J. Am. Chem. Soc. 130, 6920+ (2008).
[MPC-52] S. Moebs-Sanchez, G. Bouhadir, N. Saffon, L. Maron, and D. Bourissou
Tracking reactive intermediates in phosphine-promoted reactions with ambiphilic phosphino-boranes
Chem. Comm. pages 3435–3437 (2008).
[MPC-53] S. Mathieu, R. Poteau, and G. Trinquier
Estimating the “Steric clash” at cis peptide bonds
J. Phys. Chem. B 112, 7894–7902 (2008).
[MPC-54] L. Maron, A. Dommergue, C. Ferrari, M. Delacour-Larose, and X. Fain
How Elementary Mercury Reacts in the Presence of Halogen Radicals and/or Halogen Anions : A DFT
Investigation
Chem. Eur. J. 14, 8322–8329 (2008).
[MPC-55] M. U. Kramer, D. Robert, S. Arndt, P. M. Zeimentz, T. P. Spaniol, A. Yahia, L. Maron,
O. Eisenstein, and J. Okuda
Cationic Methyl Complexes of the Rare-Earth Metals : An Experimental and Computational Study on
Synthesis, Structure, and Reactivity
Inorg. Chem. 47, 9265–9278 (2008).
[MPC-56] N. Iche-Tarrat, N. Barros, C. J. Marsden, and L. Maron
Linear uranium complexes X2UL5 with L=cyanide, isocyanate : DFT evidence for similarities between
uranyl (X = O) and uranocene (X = Cp) derivatives
Chem. Eur. J. 14, 2093–2099 (2008).
[MPC-57] S. Goel, M. Cohen, S. N. Coemezoglu, L. Perrin, F. Andre, D. Jayabalan, L. Lacono,
A. Comprelli, V. T. Ly, D. Zhang, C. Xu, W. G. Humphreys, H. McDaid, G. Goldberg, S. B. Horwitz, and
S. Mani
The effect of ketoconazole on the pharmacokinetics and pharmacodynamics of ixabepilone : A first in class
epothilone B analogue in late-phase clinical development
Clin. Cancer Res. 14, 2701–2709 (2008).
[MPC-58] L. Fischer, C. Didierjean, F. Jolibois, V. Semetey, J. M. Lozano, J.-P. Briand, M. Marraud, R.
Poteau, and G. Guichard
Propensity for local folding induced by the urea fragment in short-chain oligomers
Org. Biomol. Chem. 6, 2596–2610 (2008).
[MPC-59] A. Carella, J.-P. Launay, R. Poteau, and G. Rapenne
Synthesis and Reactivity of [Penta(4-halogenophenyl)cyclopentadienyl]-[hydrotris(indazolyl)borat
o]ruthenium(II) Complexes : Rotation-Induced Fosbury Flop in an Organometallic Molecular Turnstile
Chem. Eur. J. 14, 8147–8156 (2008).
[MPC-60] S. Bontemps, G. Bouhadir, W. Gu, M. Mercy, C.-H. Chen, B. M. Foxman, L. Maron, O. V.
Ozerov, and D. Bourissou
Metallaboratranes derived from a triphosphanyl-borane : Intrinsic C-3 symmetry supported by a Z-type
ligand
[MPC-61] N. Barros, M. Schappacher, P. Dessuge, L. Maron, and S. M. Gullaume
MPC/Appendix - 108
New insights into the polymerization of methyl methacrylate initiated by rare-earth borohydride
complexes : A combined experimental and computational approach
Chem. Eur. J. 14, 1881–1890 (2008).
[MPC-62] N. Barros, P. Mountford, S. M. Guillaume, and L. Maron
A DFT study of the mechanism of polymerization of epsilon-caprolactone initiated by organolanthanide
borohydride complexes
Chem. Eur. J. 14, 5507–5518 (2008).
[MPC-63] N. Barros, O. Eisenstein, L. Maron, and T. D. Tilley
DFT investigation of the catalytic hydromethylation of olefins by scandocenes. 2. Influence of the ansa
ligand on propene and isobutene hydromethylation
2009
[MPC-64] A. Yahia and L. Maron
Is Thorium a d Transition Metal or an Actinide? An Answer from a DFT Study of the Reaction between
Pyridine N-Oxide and Cp2M(CH3)(2) with M = Zr, Th, and U
[MPC-65] A. Yahia, P. L. Arnold, J. B. Love, and L. Maron
A DFT study of the single electron reduction and silylation of the U-O bond of the uranyl dication in a
macrocyclic environment
Chem. Comm. pages 2402–2404 (2009).
[MPC-66] J. Toulouse, I. C. Gerber, G. Jansen, A. Savin, and J. G. Angyan
Adiabatic-Connection Fluctuation-Dissipation Density-Functional Theory Based on Range Separation
Phys. Rev. Lett. 102, 096404 (2009).
[MPC-67] I. del Rosal, F. Jolibois, L. Maron, K. Philippot, B. Chaudret, and R. Poteau
Ligand effect on the NMR, vibrational and structural properties of tetra- and hexanuclear ruthenium
hydrido clusters : a theoretical investigation
[MPC-68] C. Prouillac, P. Vicendo, J.-C. Garrigues, R. Poteau, and G. Rima
Evaluation of new thiadiazoles and benzothiazoles as potential radioprotectors : Free radical scavenging
activity in vitro and theoretical studies (QSAR, DFT)
Free Radical Biol. Med. 46, 1139–1148 (2009).
[MPC-69] L. Perrin, Y. Sarazin, E. Kirillov, J.-F. Carpentier, and L. Maron
On the Initiation Mechanism of Syndiospecific Styrene Polymerization Catalyzed by Single-Component
ansa-Lanthanidocenes
Chem. Eur. J. 15, 3773–3783 (2009).
[MPC-70] P. Oulie, N. Nebra, N. Saffon, L. Maron, B. Martin-Vaca, and D. Bourissou
2-Indenylidene Pincer Complexes of Zirconium and Palladium
J. Am. Chem. Soc. 131, 3493–3498 (2009).
[MPC-71] M. Mercy and L. Maron
Can 1,3-butadiene be catalytically hydrophosphinated in the presence of Cp2EuH? A DFT investigation
[MPC-72] F. Jolibois, L. Maron, and A. Ramirez-Solis
MPC/Appendix - 109
Ab initio molecular dynamics studies on the lowest triplet and singlet potential surfaces of the azide cation :
Anharmonic effects on the vibrational spectra of linear and cyclic N-3(+)
[MPC-73] I. C. Gerber, P. Puech, A. Gannouni, and W. Bacsa
Influence of nitrogen doping on the radial breathing mode in carbon nanotubes
Phys. Rev. B 79, 075423 (2009).
[MPC-74] C. H. Booth, M. D. Walter, D. Kazhdan, Y.-J. Hu, W. W. Lukens, E. D. Bauer, L. Maron, O.
Eisenstein, and R. A. Andersen
Decamethylytterbocene complexes of bipyridines and diazabutadienes : Multiconfigurational ground states
and open-shell singlet formation
J. Am. Chem. Soc. 131, 6480–6491 (2009).
[MPC-75] M. Sircoglou, M. Mercy, N. Saffon, Y. Coppel, G. Bouhadir, L. Maron, and D. Bourissou
Gold(i) complexes of phosphanyl gallanes : From interconverting to separable coordination isomers
Angew. Chem., Int. ed. Eng. 48, 3454–3457 (2009)
[MPC-76] E. L. Werkema, R. A. Andersen, A. Yahia, L. Maron, and O. Eisenstein
Hydrogen for x-group exchange in CH3X (X = Cl, Br, I, OMe, and NMe2) by monomeric [1,2,4(Me3C)(3)C5H2](2)CeH : Experimental and computational support for a carbenoid mechanism
[MPC-77] I. del Rosal, T. Gutmann, L. Maron, F. Jolibois, B. Chaudret, B. Walaszek, H.-H. Limbach,
R. Poteau, and G. Buntkowsky
DFT 2H quadrupolar coupling constants of ruthenium complexes : a good probe of the coordination of
hydrides in conjuction with experiments
Phys. Chem. Chem. Phys. 11, 5657–5663 (2009)
[MPC-78] Ch. Raynaud, I. del Rosal, L. Maron, F. Jolibois, and R. Poteau
Multicentered Effective Group Potentials: ligand-field effects in organometallic clusters and dynamical
study of chemical reactivity
Theo. Chem. Acc., to be published, DOI: 10.1007/s00214-009-0615-z
ACTI
I. Gerber, P. Puech, A. Gannouni, and W. Bacsa ,― Effect of doping on the radial breathing mode
in carbon nanotubes ‖, NSTI, Houston (USA), 2009.
INV
Lionel Perrin, Elsa Messines, Noémi Barros, Odile Eisenstein, Richard A. Andersen, L. Maron,
―Catalysis by lanthanocenes : a combined theoretical and experimental study‖, 7th WATOC
Conference, Captown, 2005
L. Maron, ―Organolanthanide chemistry : Some insights from Theory‖, Young Chemist Workshop,
Knooke-Zoute, 2006
L. Maron, ―Organolanthanide chemistry : A Combined experimental and theoretical study‖,
National ACS Meeting, San Francisco, 2006
L. Maron, ―A combined theoretical and experimental study of the reactivity of organo-uranium
complexes‖, ACTINET workshop on X absorption threshold, 2007
L. Maron, ―Structure and Reactiviy of MMenTHFm‖, 8th WATOC Conference, Sydney, 2008
L. Maron, ―Is the reactivity of organolanthanide only of metathesis form ?‖, National ACS
Meeting, Salt Lake City, 2009
COM
F. Jolibois ― Dynamique moléculaire ab initio en base locale.‖ Cours à l'atelier de formation du
CNRS, 'Techniques de dynamique moléculaire en phase condensée‘, Paris, 2005.
MPC/Appendix - 110
R. Poteau and G. Trinquier, ― Theoretical design of new cyclic polypeptides, properties and
potential applications ‖, SFC Eurochem, Nancy, 2005.
L. Perrin, M. Delaforge, F. André ― Interactions multi-substrats au sein d'une enzyme multispécifique: un casse-tête expérimental et théorique ‖ GGMM 2005, Ile des Embiez, France, 2005.
R. Poteau and G. Trinquier, ― Polypeptides tout cis: suggestions pour de nouveaux arrangements
peptidiques ‖, Xème Réunion des Chimistes Théoriciens Francophones, Nancy, 2006.
I. Gerber and J. Angyan, ― Fonctionnelles hybrides à séparation de portée ‖, Xème Réunion des
Chimistes Théoriciens Francophones, Nancy, 2006.
F. Jolibois, O. Soubias, V. Réat, A. Milon ―RMN de stérols en membrane.‖ 2ème Journée chimie
expérimentale et théorique, Toulouse, 2006.
F. Jolibois, O. Soubias, A. Milon, V. Réat ―Apport théorique à la RMN des stérols‖ 20ème Congrès
de la Société Française de Biophysique, Anglet, 2006.
I. Gerber, A. Krashenninikov, A. Foster and R. Nieminen, ― Magnétisme du carbone dans les
nano-structures ‖, GdR DFT++, Autrans, 2007.
I. Gerber, M. Marsman, J. Angyan, P. Garcia, S. Dahoui and C. Lecomte, ― DFT study of the
neutral and ionic forms of the donor-acceptor charge transfer system, the TTF-CA ‖, Physics Days
of Finnish Physical Society, Tallinn (Estonia), 2007.
I. del Rosal, R. Poteau, L. Maron, F. Jolibois ―Influence de la nature des ligands sur les propriétés
électroniques d‘agrégats de métaux d‖ 11ème Réunion des chimistes théoriciens français, Dinard,
2008.
I. del Rosal, F. Jolibois, L. Maron, R. Poteau ―Effets des ligands sur différents paramètres
spectroscopiques et structuraux pour des agrégats tétranucléaires de ruthénium: Etude théorique‖
Réunion thématique du GDR DFT++, Toulouse, 2008.
L. Rougier, J. Czaplicki, A. Milon, O. Saurel, V. Réat, F. Jolibois ―NMR properties of a
transmembrane model peptide obtained by quantum chemical approaches. Comparison with solidstate NMR experiments.‖ 237th National meeting of the American Chemical Society, Salt Lake City,
(USA), 2009.
I. del Rosal, L. Maron, B. Chaudret, F. Jolibois and R. Poteau, ― Ligands effects on the NMR and
structural properties of ruthenium hydrido clusters: a theoretical investigation ‖, 237th ACS
National Meeting & Exposition, Salt Lake City (USA), 2009.
AFF
I. Gerber and J. Angyan, ―DFT description of van der Waals forces with explicit long-range
interactions‖, Geneva (Switzerland), 2005
I. Gerber, A. Savin, J. Toulouse and J. Angyan, ― DFT description of van der Waals forces with
explicit long-range interactions‖, Workshop CECAM, Lyon, 2005
I. Gerber and J. Angyan, ― Fonctionnelle hybride avec séparation de portée‖, GdR DFT, Cap
d'Agde, 2005
R. Poteau and G. Trinquier, ― Theoretical design of new cyclic polypeptides, properties and
potential applications ‖, SFC Eurochem, Nancy, 2005.
L. Perrin, M. Delaforge, P. Vayer, F. André, ― Multi-substrate Interaction with CYP3A4:
Mechanistic Insights by means of Molecular Dynamics Simulations ‖, 14th International
Conference on Cytochromes, P450, Dallas, USA (TX), 2005.
V. Pradines, D. Lavabre, J.-C. Micheau, R. Poteau, V. Pimienta, ― Propriétés d'adsorption et
constante d'association de paires d'ions en phase aqueuse ‖, SFC Eurochem, Nancy, 2005.
L. Perrin, D. Bouvier, V. Hamon, M. Delaforge, F. André, ― Dynamique du CYP3A4: un premier
pas vers la compréhension de ses caractères multispécifique et multi-substrat ‖,20ème congrès de
la Société Française de Biophysique, Anglet, France, 2006.
L. Perrin, V. Hamon, D. Bouvier, M. Delaforge, F. André, ― Are the multi-substrate cooperative
effects of CYP3A4 related to the intrinsic selectivity of the different access channels to the active
site? ‖, 16th International Symposium on Microsomes and Drug Oxidations, Budapest, Hongrie,
2006.
MPC/Appendix - 111
V. Hamon, L. Perrin, M. Delaforge, F. André, ― Drug-drug interactions in CYP3A4 approached by
ligand channelling studies ‖, 2006 President‘s Meeting of the International Society of Quantum
Biology and Pharmacology, Strasbourg, France, 2006.
I. Gerber, A. Krashenninikov, A. Foster and R. Nieminen, ―DFT study of a possible
ferromagnetism in carbon-based nanostructures ‖, NT'07, Ouro Preto (Brazil), 2007.
R. Poteau and G. Trinquier, ― Polypeptides tout cis : Suggestions pour de nouveaux arrangements
peptidiques ‖, 15ème réunion du Groupe Français des Peptides et Protéines, Dinard, 2007
I. Gerber, A. Krashenninikov, A. Foster and R. Nieminen, ―A DFT study of C atom diffusion in
the process of nanofibers and nanotubes catalytic growth ‖, NT'07, Ouro Preto (Brazil), 2007.
L. Perrin, D. Bouvier, V. Hamon, M. Delaforge, F. André, ― Malleability of cytochrome P450 3A4
from a theoretical perspective ‖, 6th European Biophysics Congress, Londres, UK, 2007.
R. Poteau, R. Chaudret, G. Trinquier, L. Maron, ― Polypeptides tout cis : Une proposition
théorique de synthèse par voie organométallique ‖, 15ème réunion du Groupe Français des
Peptides et Protéines, Dinard, 2007
R. Poteau, ―Design, characterization and applications of metal nanoparticles: an example of
interdisciplinarity ‖, invited to the 3rd Annual Japanese-French Frontiers Of Science Symposium,
Japon, 2009
I. del Rosal, R. Poteau, L. Maron, ― Grafting of lanthanide complexes on silica surfaces: a
theoretical investigation ‖, 237th ACS National Meeting & Exposition, Salt Lake City (USA),
2009
HONORS AND DISTINCTIONS
Laurent Maron is junior member of the Institut Universitaire de France (http://iuf.amue.fr/)
ORGANIZATION OF CONFERENCES
Very Heavy Metals meetings (VHM2006, Aubrac and VHM2009, Canet en Roussillon). The VHM
meetings are focused on f metals (lanthanides and actinides), presenting new results both in the
experimental and theoretical fields. Local organizing committee: R. Poteau and L. Maron.
MPC/Appendix - 112

Bilan de l`activité de recherche du groupe chimie

Transcription

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