2012-01 A comparative study of superlattice films of BaTiO3 and BaTiO3/(Ba0.7Sr0.3)TiO3 methods of X-ray diffraction and Raman spectroscopy, O. A. Maslova, I.N. Zaharchenko, O.A. Bunina, Yu. I. Yuzyuk, N. Ortega, Ashok Kumar, and R. S. Katiyar. Phys. Solid State. 54, 1014 (2012).
2012-02 Optical properties of amorphous high-k LaGdO3 films and its band aligment with Si, S. P. Pavunny, R. Thomas, A. Kumar, E. Fachini, and R. S. Katiyar, Journal of Applied Physics 111, 044106 (2012).
2012-03 Ferroelectric and Dielectric properties of BaTiO3/Ba0.30Sr0.70TiO3 Superlattices. N. Ortega, Ashok Kumar, Yu. I. Yuzyuk, J. F. Scott and Ram S. Katiyar. Integrated Ferroelectrics 134, 1-7 (2012).
2012-04 Conformal Coating of Functional Ferroelectric Oxides on Carbon Nanotubes, Frank Mendoza, Ashok Kumar, Ricardo Martinez, J. F. Scott, Brad Weiner, R. S Katiyar and Gerardo Morell, Europiean Physics Letters, 97, 27001, (2012)
2012-05 Structural, morphological and piezoresponse studies of Pr and Sc co-substituted BiFeO3 ceramics, Indrani Coondoo, Neeraj Panwar, I Bdikin, V S Puli, R S Katiyar and A L Kholkin, Journal of Physics D: Applied Physics , 45, 055302, (2012).
2012-06 Raman spectroscopy to probe residual stress in ZnO nanowire, S. Sahoo. G.L. Sharma, and R. S. Katiyar, Journal of Raman Spectroscopy, 43, 72 (2012).
2012-07 Dielectric Properties and Electrical conduction of high-k LaGdO3 Ceramics, S. P. Pavunny, R. Thomas, A. Kumar, N. M. Murari, and R. S. Katiyar, Journal of Applied Physics, 111, 102811 (2012)
2012-08 Cauchy-Urbach Dielectric Function Modeling of Amorphous High-k LaGdO3 Films, S. P. Pavunny, R. Thomas, and R. S. Katiyar, ECS Transactions, 45, 219 (2012).
2012-09 A combined first-principles computational/experimental study on LiNi 0.66Co0.17 Mn0.17 O2 as a potential layered cathode material, José J. Saavedra-Arias, Chitturi Venkateswara Rao, Jifi Shojan, Ayyakkannu Manivannan, Lorraine Torres, Yasuyuki Ishikawa and Ram S. Katiyar, Journal of Power Sources, 211, 12 (2012).
2012-10 Phase Transition and Temperature Stability of Piezoelectric Properties in Mn-modified Pb(Mg1/3Nb2/3)O3-PbZrO3-PbTiO3 Ceramics, Yongke Yan , Ashok Kumar , Margarita Correa , Kyung-Hoon Cho , R. K. Katiyar, S. Priya, Appl. Phys .lett, 100, 152902 (2012)
2012-11 Electrochemical and Structural Investigations on ZnO Treated 0.5Li2MnO3-0.5LiMn0.5Ni0.5O2 Layered Composite Cathode Material for Lithium Ion Battery Gurpreet Singh, R. Thomas, Arun Kumar, R. S. Katiyar, and A. Manivannan, Journal of The Electrochemical Society, 159 (4) A470-A478 (2012).
2012-12 Electrochemical Behavior of Cr- Doped Composite Li2MnO3-LiMn0.5Ni0.5O2 Cathode Materials Gurpreet Singh, R. Thomas, Arun Kumar, and R. S. Katiyar, , Journal of The Electrochemical Society, 159 (4) A410-A420 (2012)
2012-13 Observation of strong magnetoelectric effects in Ba0.7Sr0.3TiO3/La0.7Sr0.3MnO3 thin film heterostructures, R. Martınez, A. Kumar, R. Palai, G. Srinivasan, and R. S. Katiyar, J. Appl. Phys. 111, 104104 (2012).
2012-14 Ferroelectric-Carbon Nanotube Memory Devices, Ashok Kumar, Sai G. Shivareddy, Margarita Correa, Oscar Resto, Youngjin Choi, Ram. S. Katiyar, James. F. Scott, Gehan A. J. Amaratunga, Haidong Lu, Alexe. Gruverman, Nanotechnology, 23, 165702 (2012).
2012-15 Room temperature structural, morphological, and enhanced ferroelectromagnetic properties of xBa0.7Ca0.3TiO3-(1-x)BaFe0.2Ti0.8O3 multiferroic composites. V. S. Puli, I. Coondoo, N. Panwar, A. Srinivas, and R. S. Katiyar. J. Appl. Phys. 111, 102802 (2012).
2012-16 Structure and dielectric properties of BaO-B2O3-ZnO-[(BaZr0.2Ti0.80)O3]0.85-[(Ba0.70Ca0.30)TiO3]0.15 glass-ceramics for energy storage, Venkata Sreenivas Puli, Dhiren K. Pradhan, Ashok Kumar, Xiao Feng Su, C.M. Busta, M. Tomozawa, Douglas B Chrisey, R.S.Katiyar. Journal of Materials Science: Materials in Electronics, 23, 694 (2012).
2012-17 Microstructure-relaxor property relationship of PbSc0.5Nb(1-x)/2Tax/2O3 thin films, Margarita Correa, Ashok Kumar, and R. S. Katiyar, Ferroelectrics, 426, 112 (2012).
2012-18 Comparison of the Electrical Properties of ZnO Thin Films on Different Substrates by Pulsed Laser Deposition, M. Echizen, S. Motoyama, T. Tatsuta, O. Tsuji, R. S. Katiyar, A. Kumar & J. F. Scott, Integrated Ferroelectrics, 133, 9 (2012).
2012-19 Local vibrational modes and Fano interaction in p-type ZnO: Sb system. K Samanta, A K Arora and R S Katiyar. J. Phys. D: Appl. Phys. 45 (2012) 185304 (5pp).
2012-20 Effect of oxygen partial pressure and annealing on nanocrystalline p-type ZnO:Sb thin films. K. Samanta, A.K. Arora, S. Hussain, S. Chakravarty, R.S. Katiyar. Current Applied Physics 12, 1381 (2012).
2012-21 Structural and magnetic properties of N doped ZnO thin films. Kajal Jindal, Monika Tomar, R. S. Katiyar, and Vinay Gupta. J. App. Phys 111, 102805 (2012).
2012-22 Temperature dependent dynamics of ZnO nanoparticles probed by Raman scattering: A big divergence in the functional areas of nanoparticles and bulk materials. Harish Kumar Yadav, R. S. Katiyar, and Vinay Gupta. Appl. Phys. Lett. 100, 051906 (2012)
2012-23 In-plane dielectric and magnetoelectric studies of BiFeO3. Ashok Kumar , J. F. Scott, R. Martinez, G. Srinivasan, and R. S. Katiyar. Phys. Status Solidi A 209, No. 7, 1207–1212 (2012)
One of Figures corresponding to the above article was schossen as cover of the Phys. Status Solidi A (pss) and the article was selected as be part of 2013 edition of “Best of pss”
2012-24 In-Situ Raman Spectroscopy of Layered Solid Solution Li2MnO3-LiMO2 (M = Ni, Mn, Co), Gurpreet Singh; William West; Jess Soler; Ram Katiyar, Journal of Power Sources 218, 34-38 (2012)
2012-25 Effect of Electrode Resistance on Dielectric and Transport Properties of Multiferroic
Superlattice: A Impedance Spectroscopy Study, S. Dussan, A. Kumar, J. F. Scott, and R. S. Katiyar, AIP Advances, 2, 032136 (2012)
2012-26 Optical Dielectric Function Modeling and Electronic Band Lineup Estimation of Amorphous High-k LaGdO3 Films, S. P. Pavunny, R. Thomas, A. Kumar, J. F. Scott, and R. S. Katiyar, ECS Journal of Solid State Science and Technology , 1(4) N53-N57 (2012).
2012-27 Relaxor-ferroelectric superlattices: A High energy density capacitor. N. Ortega, A. Kumar, J. F. Scott, Douglas B. Chrisey, M.Tomazawa, Shalini Kumari, D. G. B. Diestra, and R. S. Katiyar. J. Phys.: Condens. Matter. 24, 445901 (2012).
2012-28 A New Room-Temperature Multiferroic: Lead iron Tantalate Zirconate Titanate. Dilsom Sanchez, Ashok Kumar, Nora Ortega, R. S. Katiyar, J. F. Scott, R. Roque-Malherbe R. Polanco, Emerging Materials Research, 1, S1, 27-33, (2012).
2012-29 Room Temperature Novel Multiferroic Single Phase Material: (PbFe0.5Ta0.5O3)x-(PbZr0.53Ti0.47O3)(1-x), D. Sánchez, N. Ortega, R. S. Katiyar ,Ashok Kumar, J.F. Scott, 21 IEEE International Symposium on the Applications of Ferroelectrics (ISAF) proceeding (2012). doi:10.1109/ISAF.2012.6297747
2012-30 Raman spectroscopic study of structural transition in SrxBa1−xNb2O6 single crystals K. Samanta, A.K. Arora, T.R. Ravindran, S. Ganesamoorthy, K. Kitamura, S. Takekawa. Vibrational Spectroscopy 62 273–278 (2012).
2012-31 Temperature Dependent Magnetic, Dielectric Studies of Sm-Substituted Bulk BiFeO3, Venkata Sreenivas Puli, Dhiren K. Pradhan ,R. Martínez Indrani Coondoo , Neeraj Panwar ,Ram S. Katiyar , Journal of Superconductivity and Novel Magnetism, 25, 1109-1114 (2012).
2012-32 Characterization of pulsed laser deposited Cu2ZnSnS4 thin films for Solar cell. T. P.Gujar, V. R. Shinde, and R.S. Katiyar, MRS Proceedings 1447 (2012). DOI: http://dx.doi.org/10.1557/opl.2012.1165.
2012-33 Improved magnetic and piezoresponse behavior of cobalt substituted BiFeO3 thin film. Indrani Coondoo, Neeraj Panwar , Amit Tomar, I. Bdikin, A. L. Kholkin, Venkata S. Puli, and Ram S. Katiyar. Thin Solid Films. 520 6493–6498 (2012)
2012-34 Dielectric breakdown of BaO-B2O3-ZnO - [(BaZr0.2Ti0.80)O3]0.85 [(Ba0.70Ca0.30)TiO3]0.15 glass-ceramic composites, Venkata. Sreenivas. Puli, Ashok. Kumar, X. Su, C.M. Busta, D.B. Chrisey, M.Tomozawa,R.S. Katiyar, Journal of Non-crystalline Solids 358 3510–3516 (2012).
2012-35 Nanoscale piezoresponse and magnetic studies of multiferroic Co and Pr co-substituted BFO thin ﬁlms, Neeraj Panwar, Indrani Coondoo, Amit Tomar, A.L. Kholkin, Venkata S. Puli, Ram S. Katiyar, Materials Research Bulletin 47 4240–4245 (2012).
Figures corresponding to the above article were schossen as cover of the Materials Research Bulletin. December 2012
2012-36 Dielectric and Magnetic properties of Pb(Fe0.5Nb0.5)O3 - Ni0.65Zn0.35Fe2O4 Composites. Dhiren K. Pradhan, Sujit K.
Barik, Venkata S. Puli, Satyaprakash Sahoo, Ram S. Katiyar. ECS Trans. 50, 59-65 (2013). doi: 10.1149/05004.0059ecst
2012-37 Microwave assisted synthesis of ZnO nano-sheets and their application in UV-detector. Satyaprakash Sahoo, Sujit K. Barik, A.P.S. Gaur, Margarita Correa, Gurpreet Singh, R. K. Katiyar, Venkata S. Puli, J. Liriano, R. S. Katiyar. ECS Journal of Solid State Science and Technology, 1 (6) Q140-Q143 (2012).
2012-38 High-temperature spin-wave propagation in BiFeO3: relation to the Polomska transition, Ashok Kumar, R. S. Katiyar, J.F. Scott, Phys. Rev. B. Phys. 85, 224410 (2012).