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Title: Magnetic Field Control of Cycloidal Domains and Electric Polarization in Multiferroic BiFeO 3

Abstract

The magnetic field induced rearrangement of the cycloidal spin structure in the room-temperaturemultiferroic BiFeO3 is studied using small-angle neutron scattering (SANS). The cycloid propagationvectors are observed to rotate when magnetic fields applied perpendicular to the polar axisexceed a pinning threshold value of ~5T in the studied crystals. In light of these experimentalresults, a phenomenological model is proposed that describes our observations, and we revisit themicroscopic origin of the magnetoelectric effect. A new term describing a coupling between themagnetic anisotropy and the polarization is proposed to explain the recently discovered magneticfield induced in-plane electric polarization.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7]
  1. Hungarian Academy of Sciences, Budapest (Hungary); Budapest Univ. of Technology and Economics (Hungary)
  2. Budapest Univ. of Technology and Economics (Hungary)
  3. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  4. Inst. Laue-Langevin (ILL), Grenoble (France)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan)
  7. Budapest Univ. of Technology and Economics (Hungary); Univ. of Augsburg (Germany)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1476424
Alternate Identifier(s):
OSTI ID: 1431402
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 14; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Bordács, S., Farkas, D. G., White, J. S., Cubitt, R., DeBeer-Schmitt, L., Ito, T., and Kézsmárki, I. Magnetic Field Control of Cycloidal Domains and Electric Polarization in Multiferroic BiFeO3. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.120.147203.
Bordács, S., Farkas, D. G., White, J. S., Cubitt, R., DeBeer-Schmitt, L., Ito, T., & Kézsmárki, I. Magnetic Field Control of Cycloidal Domains and Electric Polarization in Multiferroic BiFeO3. United States. doi:10.1103/PhysRevLett.120.147203.
Bordács, S., Farkas, D. G., White, J. S., Cubitt, R., DeBeer-Schmitt, L., Ito, T., and Kézsmárki, I. Thu . "Magnetic Field Control of Cycloidal Domains and Electric Polarization in Multiferroic BiFeO3". United States. doi:10.1103/PhysRevLett.120.147203.
@article{osti_1476424,
title = {Magnetic Field Control of Cycloidal Domains and Electric Polarization in Multiferroic BiFeO3},
author = {Bordács, S. and Farkas, D. G. and White, J. S. and Cubitt, R. and DeBeer-Schmitt, L. and Ito, T. and Kézsmárki, I.},
abstractNote = {The magnetic field induced rearrangement of the cycloidal spin structure in the room-temperaturemultiferroic BiFeO3 is studied using small-angle neutron scattering (SANS). The cycloid propagationvectors are observed to rotate when magnetic fields applied perpendicular to the polar axisexceed a pinning threshold value of ~5T in the studied crystals. In light of these experimentalresults, a phenomenological model is proposed that describes our observations, and we revisit themicroscopic origin of the magnetoelectric effect. A new term describing a coupling between themagnetic anisotropy and the polarization is proposed to explain the recently discovered magneticfield induced in-plane electric polarization.},
doi = {10.1103/PhysRevLett.120.147203},
journal = {Physical Review Letters},
number = 14,
volume = 120,
place = {United States},
year = {Thu Apr 05 00:00:00 EDT 2018},
month = {Thu Apr 05 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
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Works referenced in this record:

Epitaxial BiFeO3 Multiferroic Thin Film Heterostructures
journal, March 2003