dc.citation.conferencePlace |
US |
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dc.citation.title |
APS March Meeting 2017 |
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dc.contributor.author |
Lee, Jun Hee |
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dc.date.accessioned |
2023-12-19T19:36:11Z |
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dc.date.available |
2023-12-19T19:36:11Z |
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dc.date.created |
2019-01-08 |
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dc.date.issued |
2017-03-13 |
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dc.description.abstract |
Type-I multiferroics where spin and electric polarization order at distinct temperatures were believed to have smaller couplings between them compared to type-\textit{II} multiferroics such as TbMnO3. However, we recently discovered unexpectedly huge couplings between spin and electric polarization in representative type-I multiferroic BiFeO3. This hidden coupling leads to record-high spin-induced ferroelectric polarizations (\textasciitilde 3.0 μC/cm2) [1] which is one or two order larger than in any other multiferroics. Also, the spin-polarization couplings in \textit{dynamic} region [2] generates strong electromagnons resulting in sizable one-way optical transparency at the spin-wave excitations [3]. Overall, we show how our theoretical results revive studies in revealing hidden but huge spin-polarization couplings and their dynamic interactions with light in type-I multiferroics. |
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dc.identifier.bibliographicCitation |
APS March Meeting 2017 |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/36740 |
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dc.language |
영어 |
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dc.publisher |
American Physical Society |
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dc.title |
Giant Spin-induced Polarization and Optical-diode effect by electromagnons in BiFeO3 |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2017-03-13 |
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