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Title: Large ferroelectric polarization in antiferromagnetic BiFe 0.5Cr 0.5O 3 epitaxial films

Abstract

Multiferroic BiFe0.5Cr0.5O3 solid solution epitaxial films were grown by pulsed laser deposition on SrTiO3 (001) substrates with SrRuO3 bottom electrodes. Formation of the meta-stable composition in the form of high-quality epitaxial films was made possible by a sequential deposition of 0.1 unit cell amounts of BiFeO3 and BiCrO3. The random distribution of Fe and Cr cation results in a linear response of magnetization with varying magnetic field, consistent with a dominant antiferromagnetic order. Polarization measurements at 77.3 K for the first time reveal ferroelectric hysteresis with a remanent polarization as high as 56 C/cm2 along the pseudocubic [001] direction.

Authors:
 [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Center for Nanophase Materials Sciences
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
930932
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 91; Journal Issue: 4
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BISMUTH OXIDES; IRON OXIDES; CHROMIUM OXIDES; EPITAXY; FILMS; ANTIFERROMAGNETISM; POLARIZATION; HYSTERESIS; FERROELECTRIC MATERIALS; MAGNETIZATION; SOLID SOLUTIONS; SUBSTRATES

Citation Formats

Kim, Dae Ho, Lee, Ho Nyung, Biegalski, Michael D, and Christen, Hans M. Large ferroelectric polarization in antiferromagnetic BiFe0.5Cr0.5O3 epitaxial films. United States: N. p., 2007. Web. doi:10.1063/1.2763964.
Kim, Dae Ho, Lee, Ho Nyung, Biegalski, Michael D, & Christen, Hans M. Large ferroelectric polarization in antiferromagnetic BiFe0.5Cr0.5O3 epitaxial films. United States. doi:10.1063/1.2763964.
Kim, Dae Ho, Lee, Ho Nyung, Biegalski, Michael D, and Christen, Hans M. Mon . "Large ferroelectric polarization in antiferromagnetic BiFe0.5Cr0.5O3 epitaxial films". United States. doi:10.1063/1.2763964.
@article{osti_930932,
title = {Large ferroelectric polarization in antiferromagnetic BiFe0.5Cr0.5O3 epitaxial films},
author = {Kim, Dae Ho and Lee, Ho Nyung and Biegalski, Michael D and Christen, Hans M},
abstractNote = {Multiferroic BiFe0.5Cr0.5O3 solid solution epitaxial films were grown by pulsed laser deposition on SrTiO3 (001) substrates with SrRuO3 bottom electrodes. Formation of the meta-stable composition in the form of high-quality epitaxial films was made possible by a sequential deposition of 0.1 unit cell amounts of BiFeO3 and BiCrO3. The random distribution of Fe and Cr cation results in a linear response of magnetization with varying magnetic field, consistent with a dominant antiferromagnetic order. Polarization measurements at 77.3 K for the first time reveal ferroelectric hysteresis with a remanent polarization as high as 56 C/cm2 along the pseudocubic [001] direction.},
doi = {10.1063/1.2763964},
journal = {Applied Physics Letters},
number = 4,
volume = 91,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}