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Title:
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Destruction of spin cycloid in (111)c-oriented BiFeO3 thin films by epitaxial constraint : enhanced polarization and release of latent magnetization.
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Author:
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Bai, Feiming.; Wang, Junling.; Wuttig, M.; Li, Jiefang.; Wang, Naigang.; Pyatakov, A. P.; Zvezdin, A. K.; Cross, L. E.; Viehland, D.
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Copyright year:
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2005 |
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Abstract:
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In BiFeO3 films, it has been found that epitaxial constraint results in the destruction of a space
modulated spin structure. For (111)c films, relative to corresponding bulk crystals, it is shown (i)
that the induced magnetization is enhanced at low applied fields; (ii) that the polarization is
dramatically enhanced; whereas, (iii) the lattice structure for s111dc films and crystals is nearly
identical. Our results evidence that eptiaxial constraint induces a transition between cycloidal and
homogeneous antiferromagnetic spin states, releasing a latent antiferromagnetic component locked
within the cycloid. |
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Subject:
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DRNTU::Engineering::Materials::Magnetic materials.
DRNTU::Engineering::Materials::Microelectronics and semiconductor materials::Thin films.
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Type:
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Journal Article |
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Series/ Journal Title:
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Applied physics letters |
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School:
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School of Materials Science and Engineering |
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Rights:
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© 2005 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at the following DOI: http://dx.doi.org/10.1063/1.1851612. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. |
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Version:
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Published version |
