Growth and characterization of multiferroic BiMnO$_{3}$ thin films
ORAL
Abstract
BiMnO$_{3}$ is a rare single phase, multiferroic compound which displays both ferromagnetic and ferroelectric properties. However, it is complicated to grow thin films of BiMnO$_{3 }$due to the volatility of bismuth and substrate induced strain. We have grown thin films of BiMnO$_{3}$ on SrTiO$_{3}$ (100) substrates using pulsed laser deposition. These films have a ferromagnetic $T_{C}$ of about 95 K and electric polarization vs. electric field curves have confirmed their ferroelectric properties. The structure and chemical composition of these thin films have been characterized using x-ray diffraction, atomic force microscopy, scanning electron microscopy, and Auger electron spectroscopy. We will present evidence of the sensitivity of the multiferroic properties of BiMnO$_{3}$ thin films to the growth conditions and substrate induced strain.
*Supported by NSF DMR-0804452 (AB) and NSF DMR-0704240 (AFH)
–
Authors
Amlan Biswas
Department of Physics, University of Florida, Gainesville, FL 32611
University of Florida
Department of Physics, University of Florida, Gainesville, Florida 32611
G. Singh-Bhalla
Department of Physics, University of Florida, Gainesville, FL 32611
University of Florida
Chelsey Morien
Department of Physics, University of Florida, Gainesville, FL 32611
Hyoung Jeen Jeen
Department of Physics, University of Florida, Gainesville, FL 32611
University of Florida
Department of Physics, University of Florida, Gainesville, Florida 32611
P. Mickel
Department of Physics, University of Florida, Gainesville, FL 32611
University of Florida
S. Tongay
University of Florida
Department of Physics, University of Florida, Gainesville, FL 32611
Julia Neff
Department of Physics, University of Florida, Gainesville, FL 32611
A.F. Hebard
University of Florida, Gainesville, FL-32611, USA
University of Florida
Department of Physics, University of Florida, Gainesville, FL 32611
