Direct observation of magnon-phonon coupling in yttrium iron garnet

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dc.citation.articleNumber100406(R)en_US
dc.citation.issueNumber10en_US
dc.citation.journalTitlePhysical Review Ben_US
dc.citation.volumeNumber96en_US
dc.contributor.authorMan, Haoranen_US
dc.contributor.authorShi, Zhongen_US
dc.contributor.authorXu, Guangyongen_US
dc.contributor.authorXu, Yadongen_US
dc.contributor.authorChen, Xien_US
dc.contributor.authorSullivan, Seanen_US
dc.contributor.authorZhou, Jianshien_US
dc.contributor.authorXia, Keen_US
dc.contributor.authorShi, Jingen_US
dc.contributor.authorDai, Pengchengen_US
dc.date.accessioned2017-10-19T17:11:53Zen_US
dc.date.available2017-10-19T17:11:53Zen_US
dc.date.issued2017en_US
dc.description.abstractThe magnetic insulator yttrium iron garnet (YIG) with a ferrimagnetic transition temperature of ∼ 560 K has been widely used in microwave and spintronic devices. Anomalous features in spin Seeback effect (SSE) voltages have been observed in Pt/YIG and attributed to magnon-phonon coupling. Here, we use inelastic neutron scattering to map out low-energy spin waves and acoustic phonons of YIG at 100 K as a function of increasing magnetic field. By comparing the zero and 9.1 T data, we find that instead of splitting and opening up gaps at the spin wave and acoustic phonon dispersion intersecting points, magnon-phonon coupling in YIG enhances the hybridized scattering intensity. These results are different from expectations of conventional spin-lattice coupling, calling for different paradigms to understand the scattering process of magnon-phonon interactions and the resulting magnon polarons.en_US
dc.identifier.citationMan, Haoran, Shi, Zhong, Xu, Guangyong, et al.. "Direct observation of magnon-phonon coupling in yttrium iron garnet." <i>Physical Review B,</i> 96, no. 10 (2017) American Physical Society: https://doi.org/10.1103/PhysRevB.96.100406.en_US
dc.identifier.digitalDirect_observation_magnon-phonon_couplingen_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.96.100406en_US
dc.identifier.urihttps://hdl.handle.net/1911/97798en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleDirect observation of magnon-phonon coupling in yttrium iron garneten_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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