Magnetic Field Control of Cycloidal Domains and Electric Polarization in Multiferroic
- Hungarian Academy of Sciences, Budapest (Hungary); Budapest Univ. of Technology and Economics (Hungary)
- Budapest Univ. of Technology and Economics (Hungary)
- Paul Scherrer Inst. (PSI), Villigen (Switzerland)
- Inst. Laue-Langevin (ILL), Grenoble (France)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan)
- 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
Web of Science
Role of barium substitution on oxygen vacancy reduction in BiFeO3 thin films
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journal | June 2019 |
Progress in BiFeO 3 -based heterostructures: materials, properties and applications
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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
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journal | January 2020 |
Direct coupling of ferromagnetic moment and ferroelectric polarization in
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journal | October 2019 |
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