2008

2008

2008-01 New phase transition in SrSnO3: Raman scattering analysis and differential thermal analysis, Manoj K. Singh, Naba 

K. Karan, R.S. Katiyar, J.F. Scott and H.M. Jang. J. Phys: Conds. Matter, 20, 055210, (2008) 

2008-02 Impedance spectroscopic studies of the Pb(Zr,Ti)O3-CoFe2O4 layered thin films, N. Ortega, Ashok Kumar, P. Bhattacharya, S.B. Majunder and R.S. Katiyar, Physics Review B, 77, 014111 (2008)

2008-03 Study of optical phonon lifetimes near the diffuse phase transition in relaxor ferroelectric thin films, M. Correa, A. Kumar, J.F. Scott, and R.S. Katiyar, J. Phys.: Condens. Matter, 20 125211 (2008)

2008-04 Raman spectroscopy and dielectric studies of multiple phase transition in ZnO:Ni, H. Kumar-Yadav, K. Sreenivas, V. Gupta, J.F. Scott, and R.S. Katiyar, App. Phys. Lett. 92 122908 (2008)

2008-05 Electrochemical performance of ZnO-coated LiMn1.5Ni0.5O4 cathode material, Rahul Singhal, Maharaj S. Tomar, Juan G. Burgos, and Ram S. Katiyar, Journal of Power Sources, 183 334 (2008)

2008-06 Structural and electrochemical characterization of solution derived LiMn0.5Ni0.5O2 as positive electrode for Li-ion rechargeable batteries, N.K. Karan, J.J. Saavedra-Arias, D.K. Pradhan, R. Melgarejo, Arum Kumar, R. Thomas, and R.S. Katiyar, Electrochem. Solid State Lett., 11 (8) A135 (2008)

2008-07 Thin films of high-k dysprosium scandate prepared by metal organic chemical vapor deposition for metal-insulator-metal capacitor applications, R. Thomas, J.J. Saavedra-Arias, N.K. Karan, N.M. Murari, R.S. Katiyar, P. Ehrhart, and R. Waser, Solid State Communications, 147 332 (2008)

2008-08 Strain induced relaxor behavior in PbSc0.5Nb0.25Ta0.25O3 thin films: A comparison with nanoceramics. Margarita Correa, A. Kumar and R.S. Katiyar, J. Am. Cer. Soc. 91 (6) 1788 (2008) (Invited Paper)

2008-09 Polarized Raman scattering and lattice dynamics of antiferromagnetic NdFeO3, Manoj K. Singh, Ram S Katiyar, and H M Jang, J. Raman Spectroscopy, 39 842 (2008)

2008-10 b phase and g-b metal-insulator Transition in multiferroic BiFeO3. R. Palai, R.S. Katiyar, H. Schmid, P. Tissot, S.J. Clark, J. Robertson, S.A.T. Redfern, G. Catalan, and J.F. Scott. Phys. Rev. B, 77 014110 (2008)

2008-11 Spin-glass transition in single-crystal BiFeO3, M.K. Singh, P. Wilfrid, M.P. Singh, R.S. Katiyar, and J.F. Scott, Phys. Rev. B, 77 144403 (2008)

2008-12 Critical phenomena at the 140K and 200K magnetic phase transitions in BiFeO3, J.F. Scott, M. Singh, and R.S. Katiyar, J. Phys.: Condens. Matter, 20 322203 (2008)

2008-13 New magnetic phase transition in BiFeO3, M. Singh, R.S. Katiyar, and J.F. Scott, J. Phys.: Condens. Matter, 20 252203 (2008)

2008-14 New phase transitions in perovskite oxides: BiFeO3, SrSnO3, and Pb(Fe2/3W1/3)1/2Ti1/2O3, J.F. Scott, R. Palai, Ashok Kumar, M. Singh, N.M. Murari, N.K. Karan, and R.S. Katiyar, J. Am. Cer. Soc. 91 (6) 1762 (2008)

2008-15 Synthesis and characterization of Pb(Fe1/2Ta1/2)O3, R. Martínez, R. Palai, and R.S. Katitar, Mater. Res. Soc. Sympo.Proc., Vol. 1034 1034-K10-48 (2008)

2008-16 Optical and magnetic properties of Zn0.9-xCo0.1O:Alx thin films, K. Samanta, P. Bhattacharya, J.G.S. Duque, W. Iwamoto, C. Rettori, P.G. Pagliuso, and R.S. Katiyar, Solid State Communications, 147, 305 (2008)

2008-17 Reduced leakage current in chemical solution deposited multiferroic BiFeO3/Ba0.25Sr0.75TiO3 heterostructured thin films on platinized silicon substrates, N.M. Murari, Ashok. Kumar, R. Thomas, and R.S. Katiyar, Apl. Phyis, Lett., 92 132904 (2008)

2008-18 Observation of one magnon and magnon-phonon-electric dipole coupling in multiferroics bismuth ferrite thin films, Ashok Kumar, N.M. Murari, and R.S. Katiyar, Apl. Phyis, Lett., 92 152907 (2008)

2008-19 Multiferroic Pb(Fe0.66W0.33)0.80Ti0.20O3 thin films: A room temperatura relaxor ferroelectric and weak ferromagnetic, Ashok Kumar, I. Rivera, and R.S. Katiyar, Apl. Phyis, Lett., 92 132913(2008)

2008-20 Structural degradation and optical properties of nanocrystalline ZnO thin films grown on Si (100), Boqian Yang, Ashok Kumar, Noel Upia, Peter Feng, and R.S. Katiyar, App. Phys. Lett., 92 233112 (2008)

2008-21 High energy density MIM capacitors with Ba[(Ni1/2W1/2)0.1Ti0.9]O3 thin films, N.K. Karan, J.J. Saavedra-Arias, M. Perez, R. Thomas, and R.S. Katiyar, Apl. Phyis, Lett., 92, 012903 (2008)

2008-22 Probing of ferroelectric phase transition in sol-gel derived polycrystalline bismuth ferrite thin films, Ashok Kumar, N.M. Murari, and R.S. Katiyar, Journal of Raman Spectroscopy, 39 [9], 1262 (2008)

2008-23 Investigation of dielectric, electrical and optical properties of Pb1/2Sr1/2TiO3 ceramics, Iris Rivera, Ashok Kumar, Frank Mendoza, and R.S. Katiyar, Physica B, 403, 2423 (2008)

2008-24 Anomalous magnetic ordering transition and induced Raman scattering in BiFeO3 thin films, M. Singh, W. Prellier, H. M. Jang, and R.S. Katiyar, Mat. Res. Soc. Sympo., 1034, 1034-K03-05 (2008)

2008-25 XPS and Raman characterization of single-walled carbon nanotubes grown from pretreated Fe2O3 nanoparticles, P. B. Amama, D. Zemlyanov, B. Sundarakannan, R. S. Katiyar, and T. S. Fisher, J. Phys. D: Appl. Phys., 41, 165306 (2008)

2008-26 Phase transition and dielectric tunability of chemical solution deposited (Pb0.35Sr0.65)(Zr0.5Ti0.5)O3 thin films on Pt/ZrO2/SiO2/Si substrates, N.K. Karan, M. Perez, J. Saavedra, D. Pradhan, R. Thomas, and R.S. Katiyar, Mat. Res. Soc. Sympo., 1034, 1034-K10-40 (2008)

2008-27 Synthesis and electrochemical properties of Li(Ni0.8Co0.1Mn0.1)O2 cathode material: Ex situ structural analysis by Raman scattering and X-ray diffraction at various stages of charge-discharge process, J.J. Saavedra-Arias, N.K. Karan, Dillip K. Pradhan, Arum Kumar, Santander Nieto, R. Thomas, and R.S. Katiyar, Journal of Power Sources, 183, 761 (2008)

2008-28 Effect of La/Mn substitution on electrical properties of BiFeO3 multiferroics, Dillip K. Pradhan, R.N.P. Choudhary, C.M. Tirado, and R.S. Katiyar, Indian Journal of Engineering & Materials Science, 15 [2], 87 (2008)

2008-29 Low-frequency zone-boundary phonons in Li doped ZnO ceramics, H. Kumar-Yadav, K. Sreenivas, V. Gupta, and R.S. Katiyar, J. App. Phys. 104, 053507 (2008)

2008-30 Solid polymer electrolytes based on polythylene oxide and lithium trifluoro-methane sulfanote (PEO-LiCF3SO3): Ionic conductivity and dielectric relaxation, N.K. Karan, D.K. Pradhan, R. Thomas, N. Baskaran, and R.S. Katiyar, Solid State Ionic, 179, 689 (2008)

2008-31 Metal-ferroelectric-insulator-semiconductor (MFIS) devices based on DyScO3 buffer layer and ferroelectric Bi3.25Nd0.75Ti3O12 thin film, R. Thomas, D.K. Pradhan, R. Melgarejo, J.J. Saavedra-Arias, N.K. Karan, R. Palai, N.M. Murari, and R.S. Katiyar, ECS Transactions, 13 [2], 363 (2008)

2008-32 Observation of magnetoelectric coupling in glassy epitaxial Pb(Fe0.5Nb0.5)O3 thin films, M. Correa, Ashok Kumar, R. S. Katiyar, and Carlos Rinaldi, Apl. Phyis, Lett., 93, 192907 (2008)

2008-33 Self-assembled ZnO nanostructure for field-emission devices, P. Bhattacharya, D. Varshney, K. Samanta, and R.S. Katiyar, Journal of Nano Research, 4, 19 (2008)

2008-34 Size and strain effects on relaxor ferroelectric properties of Pb(ScNb(1-x)/2Tax/2)O3 thin films and nanoceramics, M. Correa, Ashok Kumar, and R. S. Katiyar, Integrated Ferroelectrics, 100, 297 (2008) (Invited Paper)

2008-35 Enhanced polarization and dielectric properties of Pb(Zr1-xTix)O3 thin films, N. Ortega, Ashok Kumar, and R.S. Katiyar, J.App. Phys., 104, 074114 (2008)

2008-36 Microwave dielectric and Raman Scattering studies on Bismuth Zinc Niobate thin films, K. Sudheendran, K.C. James Raju, M. Singh, and R.S. Katiyar, J. App. Phys. 104, 104104 (2008)

2008-37 Temperature dependence of the dynamics of zone boundary phonons in ZnO:Li, H. Kumar-Yadav, K. Sreenivas, V. Gupta, and R.S. Katiyar, J. App. Phys. 104, 113523 (2008)

2008-38 Critical slowing-down of spin fluctuations in BiFeO3, J. F. Scott, M.K. Singh, and R. S. Katiyar, J. Phys.: Condens. Matter, 20, 425223 (2008)

2008-39 Glass-like state in PbFe1/2Nb1/2O3 single crystal, Ashok Kumar, R. S. Katiyar, C. Rinaldi, S. Lushnikov, and T. A. Shaplygina, App. Phys. Lett., 93, 232902 (2008)

2008-40 Synthesis and characterization of Fe-doped In2O3 nanoparticles, S. Dussan-Devia, M. Singh, G.L. Sharman, R.S. Katiyar, and C. Rinaldi, Mater. Res. Soc. Sympo.Proc., Vol. 1074 1074-I10-40 (2008)

2008-41 Raman scattering measurements of phonon anhormonicity in CuAlO2 thin films, M.K. Singh, S. Dussan, G.L. Sharma, and R.S. Katiyar, J. App. Phys., 104, 113503 (2008)

2008-42 Dielectric and Raman studies of La modified lead scandium niobate ceramics, Margarita Correa, A. Kumar, and R.S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 1, DOI:10.1109/ISAF.2008.4688101 (2008)

2008-43 Structural, dielectric, electric and ferroelectric properties of different routes derived of Ba1-xSrxTiO3 (BSTO) ceramics, R. Martínez, R. Palai, and R.S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 1, DOI:10.1109/ISAF.2008.4688151 (2008)

2008-44 Fabrication of BiFeO3 capacitor structures with reduced leakage current, N. M. Murari, A. Kumar, R. Thomas, and R. S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 2, DOI:10.1109/ISAF.2008.4693777 (2008)

2008-45 Raman spectroscopy and magnetoelectric properties of laser ablated La and Cr doped BiFeO3 thin films, R. Palai, R. M. Valdes, S. P. Pavunny, and R. S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 2, DOI:10.1109/ISAF.2008.4693779 (2008)

2008-46 Structural, dielectric, electrical, and magnetic properties of multiferroic BaTiO3-NiFe2O4 composite ceramic, N. Ortega, A. Kumar and R.S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 2, DOI:10.1109/ISAF.2008.4693790 (2008)

2008-47 Phonon anomalies in multiferroic BiFeO3 epitaxial thin films with rhombohedral (R3c) symmetry, Manoj K. Singh, S. Dussan, and R. S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 2, DOI:10.1109/ISAF.2008.4693775 (2008)

2008-48 Structural properties of multiferroic CuFeO2 thin films prepared by RF sputtering, Manoj K. Singh, G. L. Sharma, S. Dussan, and R. S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 2, DOI:10.1109/ISAF.2008.4693787 (2008)

2008-49 Effect of Sr substitution on tunability and dielectric properties in Pb(Zr0.50Ti0.50)O3 thin films fabricated by chemical solution deposition, N. K. Karan, D. K. Pradhan, J. J. Saavedra-Arias, N. M. Murari, R. Thomas, R. S. Katiyar, K. Sudheendran, and K. C. J. Raju, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 3, DOI:10.1109/ISAF.2008.4693868 (2008)

2008-50 Tunable lead strontium titanate thin films by sol-gel technique, M. Jain, N.K. Karan, J. Yoon, H. Wang, and R.S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 3, DOI:10.1109/ISAF.2008.4693869 (2008)

2008-51 LiMn1.8Mg0.2O4 spinel cathode material for Li ion rechargeable batteries, R. Singhal, M. Tomar, J. Burgos, and R.S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 2, DOI:10.1109/ISAF.2008.4693795 (2008)

2008-52 Effect of Growth Temperature on Bamboo-shaped Carbon-Nitrogen (C-N) Nanotubes Synthesized Using Ferrocene Acetonitrile Precursor, Ram Manohar Yadav, Pramod Singh Dobal, T. Shripathi, R. S. Katiyar, and O. N. Srivastava, Nanoscale Res. Lett (Nano Express), DOI: 10.1007/s11671-008-9225-2

2008-53 Electrochemical and Structural Investigations of xLi[Li0.33Mn0.66]O2(1-x)Li[Ni0.8Co0.15Zr0.05]O2 (0.3≤ x ≤ 0.7) Composite Layered Oxide Cathode for Rechargeable Lithium Ion Batteries, S. Sivaprakash, R. S. Katiyar, and S.B. Majumder, ECS Transactions, 13 [19], 115 (2008)

2008-54 Effect of montmorillonite filler on structural and electrical properties of polymer nanocomposite, D.K. Pradhan, R.N.P. Choudhary, B.K. Samantaray, Awalendra K. Thakur, and R.S. Katiyar, Ionics, DOI 10.1007/s11581-008-0271-7

2008-55 Multiferroics phenomenon in Pb(B’B’’)O3 relaxor thin films and ceramics, R.S. Katiyar, Ashok Kumar, Margarita Correa, and I. Rivera, MS&T08 (Material Science and Technology 2008 Conference and Exhibition Proceeding, Perovskite Oxides: Films, Nanostructure, Properties, and Applications) 293-300, (2008)

2008-56 Multiferroics Relaxor Pb(Fe0.66W0.33)0.80Ti0.20O3 thin films, Ashok Kumar, and R.S. Katiyar, MS&T08 (Material Science and Technology 2008 Conference and Exhibition Proceeding, Fabrication, Microstructure and Interfacial Properties of Multifunctional Oxides Thin Films) 144-151, (2008)

2008-57 Polarized Raman scattering of multiferroic BiFeO3 single domain crystal and thin films, R. Palai, H. S. Schmid, and R. S. Katiyar, 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF), 2, 10.1109/ISAF.2008.4693780 (2008)