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12/27/2011 “It all comes down to basic fundamentals. If you lack fundamentals, you can't be successful.” Brittany Brown “We lost this game with no fundamentals. If we all collectively get the fundamentals down, we win this game.” Carl Everett Prof A K Yahya FSG, UiTM Bahagian 1 GARISPANDUAN FRGS Start My Introduction Writing Fundamental Research Objectives Identifying Fundamental Research Problems Problem Statement versus Objectives Problem Statement versus Novelty Stating Significance of your Study Literature Review & Theoretical Framework My FRGS Titles My Conclusions GARIS PANDUAN ERGS 1.2 DEFINISI SKIM GERAN PENYELIDIKAN FUNDAMENTAL Penyelidikan Fundamental merupakan penyelidikan asas yang boleh menghasilkan teori, konsep dan idea baru demi perkembangan ilmu. 1.2 DEFINISI SKIM GERAN PENYELIDIKAN EKSPLORATORI Penyelidikan Eksploratori merupakan penyelidikan yang boleh menjawab soalan/menyelesaikan masalah ”apa” dan ”di mana”. (Exploratory research is research that addresses the questions of or solves the problems of ”what” and ”where”) Apa yang baru? RESEARCH CHARACTERISTICS Bahagian 1 GARISPANDUAN FRGS GARIS PANDUAN ERGS 1.3 TUJUAN SKIM GERAN PENYELIDIKANFUNDAMENTAL Penyelidikan ini bertujuan untuk menggalakkan penjanaan teori, konsep dan idea baru yang dapat menjadi pemangkin kepada penemuan baru dan penciptaan yang inovatif yang boleh mengembangkan sempadan ilmu. 1.3 TUJUAN SKIM GERAN PENYELIDIKANEKSPLORATORI Penyelidikan ini bertujuan untuk menggalakkan inquisitive minds untuk penerokaan idea dan konsep baru yang dapat menjadi pemangkin kepada penemuan baru dan penciptaan yang inovatif yang boleh mengembangkan sempadan ilmu. Apa yang baru? Its why and how Why? & How? FRGS ERGS What? & Where? Long-Term LRGS PRGS PrototypeDevelopment 5 MARCH, 2011 SSA RMI 6 1 12/27/2011 My Introduction Writing Fundamental Research Objectives Identifying Fundamental Research Problems Problem Statement versus Objectives Problem Statement versus Novelty Stating Significance of your Study Literature Review & Theoretical Framework My FRGS Titles My Conclusions Objectives. What a research project is designed to achieve; its purpose, defined in general and specific terms. next To characterize the A compound using B, C and D methods To measure A and B processes in C-substituted D compound “The purpose statement should provide a specific and accurate synopsis of the overall purpose of the study” (Locke, Spirduso, & Silverman, 1987, p. 5). To investigate/evaluate/compare/explore the effect of A substitution in B compeound on C and D properties by measuring F and G Cause and effect style It focuses on specific properties to be investigated as a result of a modification process. The objectives do not include any scientific idea or property to be investigated Title: Effects of Er3+ Doping on Electrical Conduction Mechanism, Elastic and Optical Properties of 80TeO2(20-x)Fe2O3-(x)ZnO Glass System To investigate/determine/ascertain/evaluate the role of A in the B mechanism of C substituted D compound (by measuring E and F and Embeds fundamental comparing with G) objective To synthesize 80TeO2 – (20-x) Fe2O3– (x)ZnO (x=5-20 mol %) and 80TeO2-(20-x)Fe2O3-(x)ZnO + yEr2O3 (y = 0.5, 1.0, 1.5, 2.0, 2.5 mol %) To measure elastic properties of 80TeO2 – (20-x) Fe2O3– (x)ZnO by measuring infrared absorption and ultrasonic velocity. To measure electrical resistivity of 80TeO2 – (20-x) Fe2O3– (x)ZnO by in different O2 partial pressure and with varied ZnO/Fe2O3 composition . 2 12/27/2011 Title: Effects of Glass Network Modification and Er3+ Doping on Electrical Conduction Mechanism, Elastic and Optical Properties of 80TeO2-(20-x)Fe2O3-(x)ZnO Glass System To synthesize 80TeO2 – (20-x) Fe2O3– (x)ZnO (x=5-20 mol %) and 80TeO2-(20-x)Fe2O3-(x)ZnO + yEr2O3 (y = 0.5, 1.0, 1.5, 2.0, 2.5 mol %) Er3+ on To investigate the role of ZnO/Fe2O3 and formation of glass network and elastic properties by measuring infrared absorption and ultrasonic velocity. To investigate role of ZnO/ Fe2O3 on electrical conductivity mechanism of 80TeO2 – (20-x) Fe2O3– (x)ZnO by measuring electrical resistivity in different O2 partial pressure and with varied ZnO/Fe2O3 composition . Title: A Comparative Study of Intrinsic and Extrinsic Magnetoresistance in LaLa-AgAg-MnO3 Compounds by Elemental Substitutions and Grain Boundary Modifications To characterize Sm3+ and Dy3+ substituted (La0.85-xMx)Ag0.15MnO3 and Cr3+/V3+ substituted (La0.85)Ag0.15Mn1-xMxO3 by measuring resistivity under low applied magnetic field in the range of 0 to 1 T and by measuring magnetization in a magnetic field of 1.4T. Title: Influence of Superconducting Fluctuation Behavior on Oxygen Ordering and Van Hove Electron – Phonon Binding Energy in High Temperature Superconductors Title: A Comparative Study of Intrinsic and Extrinsic Magnetoresistance in LaLa-Ag Ag--MnO3 Compounds by Elemental Substitutions and Grain Boundary Modifications To investigate role of Sm3+ and Dy3+ magnetic ions substitution at La site of (La0.85-xMx)Ag0.15MnO3 and Cr3+/V3+ at Mn site of (La0.85)Ag0.15Mn1-xMxO3 in intrinsic and estrinsic magnetoreristance mechanism by measuring magnetic susceptibility and resistivity under low applied magnetic field. To investigate role of Cr3+/V3+ magnetic ions substitution at Mn site of (La0.85)Ag0.15Mn1-xMxO3 in intrinsic and extrinsic magnetoreristance mechanism by measuring magnetic susceptibility and resistivity under low applied magnetic field. My Introduction Writing Fundamental Research Objectives Identifying Fundamental Research Problems Problem Statement versus Objectives Problem Statement versus Novelty Stating Significance of your Study Literature Review & Theoretical Framework My FRGS Titles My Conclusions To synthesize substituted TlSr1212 compounds with starting stoichiometry of TlSr2CaCu2O7-δ with substitution of Sn4+ at Tlsite, and Zr4+/Sn4+ /Ce4+ at Sr-site by solid state synthesis method. To investigate the effects of the substitutions on elastic properties, oxygen ordering and electron-phonon coupling by measuring ultrasonic velocity and attenuation. To evaluate the effects of the substitutions on superconducting fluctuation behavior and coherence length by measuring resistivity and analyzing resistivity using Aslamazov-Larkin (AL) theory. next Any issue? “A problem might be defined as the issue that exists in the literature, theory, or practice that leads to a need for the study” (Creswell, 1994, p. 50) 3 12/27/2011 It is important in a proposal that the problem stand out—that the reader can easily recognize it. (Pajares, F. (2007). Elements of a proposal) If no problem statement......work is not a scientific research....it is only data collection Data not presently available.. Make it stand out but why collect data ?? WHY? why? WHY?? Problem statements are not general but funnelled literature review to show... eg. Incomplete/insufficient/conflicting findings - - issues Effective problem statements answer the question “Why does this research need to be conducted.” If a researcher is unable to answer this question clearly then the statement of the problem will come off as ambiguous and diffuse. (Pajares, F. (2007). Elements of a proposal) Title: Effect of Ge Substitution at Tl And Sr Sites on Superconductivity and Excess Conductivity of Tl1212 Ceramics Is the problem statement fundamental enough? Study of elemental substitution, Ge ion at two different sites which are Tl- and Sr-sites provides useful information as the effectiveness of these sites on stabilizing the phase and enhancing the transition temperature can be known. By knowing the dimensionality and amplitude of conduction fluctuation characteristic, the effectiveness of both sites (Tl and Sr sites) can be investigated and the role of these sites will become clearer. This study also will contribute to understanding of the mechanism of HTSC. but why?? ..what is the issue? 4 12/27/2011 Title: A Comparative Study of Intrinsic and Extrinsic Magnetoresistance inLainLa-Ag Ag--MnO3 Compounds by Elemental Substitutions and Grain Boundary Modifications This study can lead to the discovery of new material with optimum magnetoresistance effect as well as can give a new basic in understanding the mechanism of CMR effects . Present an optimum method to synthesis a sample since preparation method play an important role to produce sample with good in quality. The understanding of MR effect on this manganites materials may offers tremendous opportunities for the development of new technologies such as read/write heads for high –capacity magnetic storage and spintronics. Nawazish et al. (2008), reported that substitution Ge4+ ion in (Cu0.5Tl0.5)Ba2Can-1Cun-yGeyO2n+4-δ had enhanced the Tc of the superconducting compound to above 77 K. This is suggested to be due to due to the successful development of mixed planes of GeO2/CuO2. The role of Ge4+ and GeO2/CuO2 mixed planes in TlSr1212 is not known. TlSr1212 which is sensitive to changes to hole concentration is expected to rapidly result in an under doped system. issues but why?? ..what is the issue? So far, to our knowledge there is no study on the substitution of Ge4+ at Tlsite and Sr-site of TlSr1212 system. OBJECTIVE noveltycopper To study and evaluate the role of Tl-site and Sr-site and average valency in superconducting behavior of Tl1212 compound. CONT.. Huda et al. (2008), had studied the Yb substitution on excess conductivity of (Tl,Pb)(Sr,Yb)2CaCu2O7 that showed characteristic crossover from 2D to 3D behavior. According to Khurram et al. (2008), the presence of this 3D behavior, may bring the critical temperature to a higher values. Different atomic sites in TlSr1212 plays different roles in superconductivity and elemental substitution may have different effect on the superconducting fluctuation behavior and the 2D to 3D transition. However not much is understood about this. issue novelty However, report on excess conductivity of higher valency of substitution element at Tl-sites and Sr-sites is still limited. Therefore, it is interesting to study and to compare, the effect of Ge substitution at each Tl and Sr sites individually, on excess conductivity of TlSr1212 superconductor. My Introduction Writing Fundamental Research Objectives Identifying Fundamental Research Problems Problem Statement versus Objectives next Problem Statement versus Novelty Stating Significance of your Study Literature Review & Theoretical Framework My FRGS Titles My Conclusions OBJECTIVE Title: Studies on Glass Network Modification Effects on Elastic, Optical and Conduction Properties of Tellurite Glass Systems. 1. ►Addition of alkali or silver in vanadotellurite glass systems showed electronic to ionic conductivity [21-22,26-30]. The addition of Na2O in xNa2O-(1-x)V2O5-TeO2 glass system caused conductivity dropped and then the conductivity increased when x >0.6 mol% [21]. ► At electronic region (x<0.4), the addition of Na2O modified the glass network by substituted the V2O5 and then blocking the electronic paths. ► At ionic region (x>0.6), addition of Na2O increase concentration of NBO that causes the existence of interstitial space. ► Intermediate region, 0.4≤x≤0.6, drastic change in conductivity linked ► However; - The existence of NBO has not been substantiated. - The extent of BO-NBO changes not exactly known. - How the structural environment accommodates electronic and ionic conductivity. - Capability to create interstitial place of ionic path is crucial. Objective 1. To investigate the influence of glass network modification due to Na2O on elastic properties at electronic-to-ionic transition region in xNa2O-(1-x)V2O5-TeO2 glass system by sound velocity and infrared absorption measurement. 2.► The increase of x value in (100-2x)TeO2-xAg2 O-xWO3 glass system caused the optical energy gap and Urbach energy of this glass system decreased [39]. ► The decrease of the optical energy gap and Urbach energy was suggested due to the increase of the NBO in this glass system. ► However ; - The influence of WO3 addition on glass network and hence on both optical energy gap and Urbach energy inTeO2-Ag2O-WO3 is still unclear since both Ag2O and WO3 were added concurrently. - Not known whether WO3 or alkali oxide,A2O is dominant and which component causes the changes to the optical energy gap and Urbach energy. - In addition, similar study on the xWO3-(40-x)Na2O-60TeO2 glass system has also not been reported. linked - The results on this system can be compared to that of the xWO3-(40-x)Ag2O-60TeO2 glass system to elucidate the role of Ag2O and Na2O. Objective 2. To investigate the influence of glass network modification by WO3 addition in xWO3-(40-x)A2O-60TeO2 glass system (A=Ag, Na) on both optical band gap and Urbach energies. 5 12/27/2011 My Introduction Writing Fundamental Research Objectives Identifying Fundamental Research Problems Problem Statement versus Objectives Problem Statement versus Novelty next Stating Significance of your Study Literature Review & Theoretical Framework My FRGS Titles My Conclusions “This research has not been done by anyone elsewhere” (a common novelty claim) So what? “No Malaysian has married an Eskimo” .....if no one has done it, why do it? Title: Effect of Ge Substitution at Tl And Sr Sites on Superconductivity and Excess Conductivity of Tl1212 Ceramics Study of elemental substitution, Ge ion at two different site which are Tl- and Sr-sites provide the useful information as the effectiveness of these both sites on stabilizing the phase and enhancing the transition temperature can be discuss. By knowing the dimensionality and amplitude of conduction fluctuation characteristic, the effectiveness of both sites (Tl and Sr sites) can be investigate and the role of these both sites will become clearer. This study also will contribute to understanding of the mechanism of HTSC. But why? My Introduction Writing Fundamental Research Objectives Identifying Fundamental Research Problems Problem Statement versus Objectives Problem Statement versus Novelty next Stating Significance of your Study Literature Review & Theoretical Framework My FRGS Topics My Conclusions Title: Effect of ZnBO and (Ba0.6Sr0.4) TiO3 Doping on Dielectric Properties of CaCu3Ti4O12 Prepared by Mechanochemical Synthesis. The addition of ZnBO-CCTO and (Ba0.6Sr0.4) TiO3-CCTO can reduce the dielectric loss of CCTO Besides that, with the both addition, it also can provide some additional information and knowledge about IBLC model and mechanism of CCTO by using a new technique, mechanochemical synthesis. 6 12/27/2011 Title: Effects of Network Modifications on Elastic Properties of Teo2-Nb2O5-ZnO and TeO2-Bi2O3-ZnO Tellurite Glass Systems Tellurite glasses with heavy metal oxides were found to show remarkable physical and optical properties [G. Senthil Murugan et al. (2004)]. Ultrasonic velocity measurement can give information about the changes in glass network and it effect on elasticity [M. A. Sidkey et al. (1997)]. Understanding elastic behavior of glasses is critical for the design of materials suitable for specific applications [C. Narayana Reddy et al. (2008)]. “The review of the literature provides the background and context for the research problem. It should establish the need for the research and indicate that the writer is knowledgeable about the area” (Wiersma, 1995, p. 406). The literature review accomplishes several important things: It shares with the reader the results of other studies that are closely related to the study being reported (Fraenkel & Wallen, 1990). It relates a study to the larger, ongoing dialogue in the literature about a topic, filling in gaps and extending prior studies (Marshall & Rossman, 1989). It provides a framework for establishing the importance of the study, as well as a benchmark for comparing the results of a study with other findings. Frame it! It “frames” the problem earlier identified. - Convince them that you know - Thorough background survey - and frame the.... problem statement My Introduction Writing Fundamental Research Objectives Identifying Fundamental Research Problems Problem Statement versus Objectives next Problem Statement versus Novelty Stating Significance of your Study Literature Review & Theoretical Framework My FRGS Titles My Conclusions Ultimately, findings will be discussed in terms of how they relate to the theory/line of inquiry that undergirds the study. - (Pajares, F. (2007). Elements of a proposal) 7 12/27/2011 Title: Effect of Ge Substitution at Tl And Sr Sites on Superconductivity and Excess Conductivity of Tl1212 Ceramics TlSr1212 Superconductor - - - TlSr2CaCu2O7 superconductor structure is analogous to YBCO. In HTSC the charge carrier (holes) concentration in CuO2 layer plays a major role in superconductivity. TlSr2CaCu2O7 has Tc=80 K (Martin et al.,1989) but is difficult to synthesized due to high average Cu valence which is 2.5+ and overdoping of hole carriers [Subramanian et al. (1988); Liu et al. (1989)]. Studies show that the optimum average Cu valence of Tl1212 is between 2.20+ to 2.30+ [Hamid et al. (2004); Shukor et al. (2000)]. For overdoping compound, the concentration of holes carrier should be reduced. One method is by Substituting the higher valence element to the chosen site example Tl- or Sr-site (Sheng et al., 1989). Excess conductivity - The Asmalazov Larkin equation is define as below: ∆σ = Aε −λ Eqn. 1 where ∆σ= 1/ρ(measured)- 1/ρ(background), σo is the conductivity at 300 K, ε = ln(T/Tcp) = (T-Tcp)/Tcp is the reduced temperature. A is the AL temperatureindependent constant, λ is the critical exponent. - Critical exponent, λ is related with the conduction dimensionality, D where λ= 1.0 for 2D λ = 2− D 2 λ= 0.5 From equation 1, ln both sides…. ln(∆σ/σo)= ln A – λln ε for 3D Eqn. 2 Eqn. 3 : THEORY: CONT Double-exchange (DE) mechanism Mobile electron Localized electron Mn3+ The ion has four electrons in its outermost 3d energy level. Hund’s rule : the four electrons in a manganese ions point in the same direction to minimize the electronic repulsions. An additional consideration in explaining this behavior is the localization of itinerant eg electrons by Jahn-Teller distortions which is arising form the deformation of the Mn3+O6 octahedral. Electronic interactions between four electrons and neighboring oxygen ions cause this single spin state to split into two energy sublevels. Interactions between the charge carriers and vibrations of the lattice ( phonons) also play an important role in changing the resistance as the temperature falls towards the Curie temperature. Polaron Polaron--electrons whose interaction with the lattice creates a deformation (energy well) that traps the electron, as a pocket on a pool table traps a billiard ball. This single electron is unstable , the system reduce its energy by splitting the doublet state into another hyperfine energy levels.; Jahn-Teller effect THEORY OF MANGANITES Two types CMR effect Magnetic coupling : The movement of the charge depends strongly on the Mn-O-Mn bond angle and the electrons spin. Hunds’s rule : the spin of mobile electrons in the highest energy band should parallel to the atomic magnetic moments due to the localized electrons Charge carriers can move easily when the magnetic moments of neighboring ions point in the same direction. When spins are parallel –as in the ferromagnetic state- the bandwidth is at a maximum and the material has lower resistivity and shows metallic behaviour Intrinsic CMR intragrain transport of conduction electron Double exchange mechanism Can be improved a lot by tuning the composition of the parent compounds, e.g., doping ions into R ( La-site) or Mn-site of R1-xAxMnO3 with different ionic sizes and appropriate level of dopant concentration Extrinsic CMR intergrain transport between ferromagnetic particles : Spin-polarized tunneling can be modified by grain boundary modifications This specific properties of grain boundary is believed may leads to a large low-field magnetoresistance (LFMR) effect over a wide temperature range below the Curie temperature Tc. 8 12/27/2011 TRANSPORT PROPERTY : A) Metallic Region B) Insulator Region Rietveld refinement Anharmonicity models Mean field analysis Electron Scattering models Polaron hopping models Ring compression models Ring deformation models A-L theory Central force models Statistical Models...and more Mott Variable hoping models Electron-electron scattering Electron magnon scattering Analysis must relate to basics and theoretical models Small polaron hoping models My Introduction Writing Fundamental Research Objectives Identifying Fundamental Research Problems Problem Statement versus Objectives Problem Statement versus Novelty Stating Significance of your Study Literature Review & Theoretical Framework My FRGS Titles next My Conclusions 4. Zakiah Mohamad (Head), Ahmad Kamal Yahya, Azilah Ibrahim, Influence of hole concentration and Jahn Teller mediated metal-insulator transition in Bi substituted LaAgMnO magnetoresistance ceramics. Fundamental Research Grant Scheme (FRGS), Ministry of Higher Education, Malaysia, 15 August 2009 to 14 August 2011, RM 49,000.00 5. Mohd Fauzi Maulud (Head), Ahmad Kamal Yahya, Faizah Md Salleh, Influence of different atomic sites on dimensionality of superconducting fluctuation behavior and coherence length in Ge-substituted TlSr1212 ceramics Fundamental Research Grant Scheme (FRGS), Ministry of Higher Education, Malaysia,15 August 2009 to 14 August 2011, RM 47,000.00 1. Rosdiyana Hasham, Ahmad Kamal Yahya, Zetty Sharizat, Influence of superconducting fluctuation transition and oxygen ordering on electronphonon binding energy in RE123 superconductors, Fundamental Research Grant Scheme (FRGS), Ministry of Higher Education, Malaysia, 1 March 2010 to 29 Februari 2012, RM 56,000.00 2. Norazila Ibrahim, Ahmad Kamal Yahya, Zakiah Mohamed, Effect of Multiferroic BiFeO3 Addition On Spin-Polarized Tunnelling Mechanism of Extrinsic Magnetoresistivity in La-Ag-MnO3 Compounds, Fundamental Research Grant Scheme (FRGS), Ministry of Higher Education, Malaysia, 1 March 2010 to 29 Februari 2012, RM 42,400.00 3. Mohd Isa Mohd Yusoff, Ahmad Kamal Yahya, Mohd Salleh bin Mohd Deni, Investigation into the mechanism of giant dielectric constant in CaCu3Ti4O12 (CCTO) ceramics by Cr/Zn substitutions and Mg2TiO4 addition. Fundamental Research Grant Scheme (FRGS), Ministry of Higher Education, Malaysia, RM 37,496.00 7. Mohd Salleh Mohd Deni, Ahmad Kamal Yahya, Mahesh Kumar Talari, Azlan Zakaria & Abdul Baset Mohamed el Nabewi, FRGS Grant Title: Grain boundary insulating layer mechanism in CaCu3Ti4O12 dielectric ceramics with Borate and Silicate glasses addition, June 2011 RM88,000.00 8. Nurul Nazuha Ariffin, Ahmad Kamal Yahya; Influence of Bi 6s2 lone pair electron on double-exchange mechanism in electrondoped La1-y-xBixCeyMnO3 manganites. January 2011, RM 60,000.00 6. Ahmad Kamal Yahya (Head) and Misbah Hassan, Effect of Rare Earth (RE) Ionic Size on Electrics and Oxygen Sensing Properties of REBa2Cu3O7 Ceramics, Fundamental Research Grant Scheme (FRGS), Ministry of Higher Education, Malaysia, 01 January 2007 to 31 December 2008, Grant of RM 40,000.00 9 12/27/2011 My Introduction Writing Fundamental Research Objectives Identifying Fundamental Research Problems Problem Statement versus Objectives Problem Statement versus Novelty Stating Significance of your Study Literature Review & Theoretical Framework My FRGS Titles My Conclusions next Critical requirements of a good research: Clear research problem/motivation Clear objectives Undoubted novelty of the work Relevant literature review Clear Theoretical framework ...hope for good results ...use proper analysis ...plan for high technical merit ...use strong scientific discussion ...give well grounded conclusions RUMUSAN PERMOHONAN TIDAK MENEPATI KRITERIA Penyelidikan yang melibatkan pemantauan atau ” tinjauan ” tidak akan dipertimbangkan; Permohonan di peringkat pembangunan produk ”product development stage” dan pembelian peralatan penyelidikan yang melibatkan kos yang tinggi juga tidak akan dipertimbangkan; Borang permohonan yang tidak diisi dengan betul / tepat di mana terdapat kekeliruan dari segi objektif, metodologi dan output; Borang permohonan tidak disahkan atau tidak diperakukan oleh IPTA atau mereka yang mempunyai kuasa untuk menyaringnya; "I serve knowledge for the sake of knowledge and not for money." - Abu Rayhan Al-Biruni (when the ruler of his time sent him three camel-loads of silver coins in appreciation of his encyclopedic work Al-Qanoon alMasoodi ) The FRGS Challenge “A research worth doing in a direction worth exploring should produce a finding worth publishing ” Your challenge THE END Everyone’s challenge 10