39 citations · 70 across the 3 of their papers we have counts for
3 papers
cond-mat.mtrl-sci2012★ 31 cited
In-plane Dielectric and Magnetoelectric Studies of BiFeO3
Ashok Kumar, J. F. Scott, R. Martinez +2
In-plane temperature dependent dielectric behavior of BiFeO3 (BFO) as-grown thin films show diffuse but prominent phase transitions near 450 (+/-10) K and 550 K with dielectric los…
cond-mat.mtrl-sci2012
High-temperature spin-wave propagation in BiFeO3: relation to the Polomska transition
Ashok Kumar, J. F. Scott, R. S. Katiyar
In bismuth ferrite thin films the cycloidal spiral spin structure is suppressed, and as a result the spin-wave magnon branches of long wavelength are reduced from a dozen to one, a…
cond-mat.mtrl-sci2010★ 39 cited
Phonon Spectroscopy Near Phase Transition Temperatures in Multferroic BiFeO3 Epitaxial Thin Films
R. Palai, J. F. Scott, R. S. Katiyar
We report a Raman scattering investigation of multiferroic bismuth ferrite BiFeO3 epitaxial (c-axis oriented) thin films from -192 to 1000C. Phonon anomalies have been observed in…