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Lee, Jun Hee
Quantum Materials for Energy Conversion Lab.
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dc.citation.conferencePlace US -
dc.citation.title APS March Meeting 2017 -
dc.contributor.author Lee, Jun Hee -
dc.date.accessioned 2023-12-19T19:36:11Z -
dc.date.available 2023-12-19T19:36:11Z -
dc.date.created 2019-01-08 -
dc.date.issued 2017-03-13 -
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. -
dc.identifier.bibliographicCitation APS March Meeting 2017 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/36740 -
dc.language 영어 -
dc.publisher American Physical Society -
dc.title Giant Spin-induced Polarization and Optical-diode effect by electromagnons in BiFeO3 -
dc.type Conference Paper -
dc.date.conferenceDate 2017-03-13 -

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