297 citations · 310 across the 6 of their papers we have counts for
6 papers
Properties of the low-frequency phonon spectra of ferroelectric barium titanate-based heterostructures
E. D. Gor'kovaya, Yu. A. Tikhonov, V. I. Torgashev +7
Polarized Raman spectra of the epitaxial Ba0.5Sr0.5TiO3 film, bi-color BaTiO3/Ba0.5Sr0.5TiO3 superlattice, and tri-color BaTiO3/Ba0.5Sr0.5TiO3/SrTiO3 superlattice were studied in a…
Giant Magnetoelectric coupling in Single Phase Pb(Zr0.20Ti0.80)0.70Pd0.30O3-δ Multiferroics
Shalini Kumari, Dhiren K. Pradhan, Nora Ortega +6
During the last fifteen years, multiferroic (MF) research communities have been searching for an alternative room temperature MF material with large magnetoelectric (ME) coupling f…
Pyroelectric Control of Spin Polarization Assisted Coexistence of Giant Positive and Negative Magnetocaloric Effects
Gaurav Vats, Ashok Kumar, Ram S. Katiyar +1
Electric field control of magnetism is the key to many next generation spintronics applications1. Ferroelectric control of spin polarization2,3 followed by the electrically driven…
Ferroelectric Capped Magnetization in Multiferroic PZT/LSMO Tunnel Junctions
Ashok Kumar, D. Barrionuevo, N Ortega +4
Self-poled ultra-thin ferroelectric PbZr0.52Ti0.48O3 (PZT) (5 and 7 nm) films have been grown by pulsed laser deposition technique on ferromagnetic La0.67Sr0.33MnO3 (LSMO) (30 nm)…
Multifunctional Magnetoelectric Materials for Device Applications
N. Ortega, Ashok Kumar, J. F. Scott +1
Mutiferroics are a novel class of next generation multifunctional materials, which display simultaneous magnetic spin, electric dipole, and ferroelastic ordering, and have drawn in…
Ferroelectric and Photovoltaic Properties of Transition Metal doped Pb(Zr0.14Ti0.56Ni0.30)O3-delta Thin Films
Shalini Kumari, Nora Ortega, Ashok Kumar +2
We report nearly single phase Pb(Zr0.14Ti0.56Ni0.30)O3-delta(PZTNi30) ferroelectric having large remanent polarization (15-30 μC/cm2), 0.3-0.4 V open circuit voltage (VOC), reduced…