Ashok Kumar
Ashok Kumar
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Impedance spectroscopy of multiferroic Pb Zr x Ti 1− x O 3∕ Co Fe 2 O 4 layered thin films
N Ortega, A Kumar, P Bhattacharya, SB Majumder, RS Katiyar
Physical Review B 77 (1), 014111, 2008
Multifunctional magnetoelectric materials for device applications
N Ortega, A Kumar, JF Scott, RS Katiyar
Journal of Physics: Condensed Matter 27 (50), 504002, 2015
Multi-states nonvolatile opto-ferroelectric memory material and process for preparing the same thereof
A Kumar, H BORKAR, RAO Vaibhav, M TOMAR, V Gupta
US Patent 10,115,456, 2018
Magnetic switching of ferroelectric domains at room temperature in multiferroic PZTFT
DM Evans, A Schilling, A Kumar, D Sanchez, N Ortega, M Arredondo, ...
Nature communications 4, 1534, 2013
Barium zirconate-titanate/barium calcium-titanate ceramics via sol–gel process: novel high-energy-density capacitors
VS Puli, A Kumar, DB Chrisey, M Tomozawa, JF Scott, RS Katiyar
Journal of Physics D: Applied Physics 44 (39), 395403, 2011
Relaxor-ferroelectric superlattices: high energy density capacitors
N Ortega, A Kumar, JF Scott, DB Chrisey, M Tomazawa, S Kumari, ...
Journal of Physics: Condensed Matter 24 (44), 445901, 2012
Characterization of electrical properties of Pb-modified BaSnO 3 using impedance spectroscopy
A Kumar, BP Singh, RNP Choudhary, AK Thakur
Materials chemistry and physics 99 (1), 150-159, 2006
Room-temperature single phase multiferroic magnetoelectrics: Pb (Fe, M) x (Zr, Ti)(1− x) O3 [M= Ta, Nb]
DA Sanchez, N Ortega, A Kumar, G Sreenivasulu, RS Katiyar, JF Scott, ...
Journal of Applied Physics 113 (7), 074105, 2013
Symmetries and multiferroic properties of novel room-temperature magnetoelectrics: Lead iron tantalate–lead zirconate titanate (PFT/PZT)
DA Sanchez, N Ortega, A Kumar, R Roque-Malherbe, R Polanco, JF Scott, ...
AIP Advances 1 (4), 042169, 2011
Giant pyroelectric energy harvesting and a negative electrocaloric effect in multilayered nanostructures
G Vats, A Kumar, N Ortega, CR Bowen, RS Katiyar
Energy Environ. Sci. 9, 1335-1345, 2016
AC impedance analysis of the effect of dopant concentration on electrical properties of calcium modified BaSnO3
A Kumar, BP Singh, RNP Choudhary, AK Thakur
Journal of alloys and compounds 394 (1-2), 292-302, 2005
Magnetic control of large room-temperature polarization
A Kumar, GL Sharma, RS Katiyar, R Pirc, R Blinc, JF Scott
Journal of Physics: Condensed Matter 21 (38), 382204, 2009
Impedance spectroscopy analysis of Ba0. 7Sr03TiO3/La0. 7Sr0. 3MnO3 heterostructure
R Martinez, A Kumar, R Palai, JF Scott, RS Katiyar
Journal of Physics D: Applied Physics 44 (10), 105302, 2011
Room temperature lead-free relaxor–antiferroelectric electroceramics for energy storage applications
H Borkar, VN Singh, BP Singh, M Tomar, V Gupta, A Kumar
RSC Advances 4 (44), 22840-22847, 2014
Ferroelectric polymer-ceramic composite thick films for energy storage applications
P Singh, H Borkar, BP Singh, VN Singh, A Kumar
AIP Advances 4 (8), 087117, 2014
Correlation of dielectric, electrical and magnetic properties near the magnetic phase transition temperature of cobalt zinc ferrite
DK Pradhan, S Kumari, VS Puli, PT Das, DK Pradhan, A Kumar, JF Scott, ...
Physical Chemistry Chemical Physics 19 (1), 210-218, 2017
Raman spectroscopy and field emission characterization of delafossite CuFeO 2
SP Pavunny, A Kumar, RS Katiyar
Journal of Applied Physics 107 (1), 013522-013522-7, 2010
Divide line between relaxor, diffused ferroelectric, ferroelectric and dielectric
I Rivera, A Kumar, N Ortega, RS Katiyar, S Lushnikov
Solid State Communications 149 (3-4), 172-176, 2009
Multiferroic thin films: A room-temperature relaxor ferroelectric and weak ferromagnetic
A Kumar, I Rivera, RS Katiyar, JF Scott
Applied Physics Letters 92 (13), 132913, 2008
Maxwell-Wagner space charge effects on the Pb (Zr, Ti) O 3–CoFe 2 O 4 multilayers
N Ortega, A Kumar, RS Katiyar, JF Scott
Applied Physics Letters 91 (10), 102902-102902-3, 2007
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