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

Journal Article · · Physical Review Letters
 [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)

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.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1476424
Alternate ID(s):
OSTI ID: 1431402
Journal Information:
Physical Review Letters, Vol. 120, Issue 14; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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Cited By (4)

Role of barium substitution on oxygen vacancy reduction in BiFeO3 thin films journal June 2019
Progress in BiFeO 3 -based heterostructures: materials, properties and applications journal January 2020
Multiferroic behavior from synergetic response of multiple ordering parameters in BiFeO 3 single crystal under high magnetic field up to 50 Tesla journal January 2020
Direct coupling of ferromagnetic moment and ferroelectric polarization in BiFeO 3 journal October 2019

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