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Spin-current emission governed by nonlinear spin dynamics

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dc.contributor.authorTashiro, Takaharu-
dc.contributor.authorMatsuura, Saki-
dc.contributor.authorNomura, Akiyo-
dc.contributor.authorWatanabe, Shun-
dc.contributor.authorKang, Keehoon-
dc.contributor.authorSirringhaus, Henning-
dc.contributor.authorAndo, Kazuya-
dc.date.accessioned2024-05-16T01:27:54Z-
dc.date.available2024-05-16T01:27:54Z-
dc.date.created2022-05-23-
dc.date.created2022-05-23-
dc.date.issued2015-10-
dc.identifier.citationScientific Reports, Vol.5-
dc.identifier.issn2045-2322-
dc.identifier.urihttps://hdl.handle.net/10371/202555-
dc.description.abstractCoupling between conduction electrons and localized magnetization is responsible for a variety of phenomena in spintronic devices. This coupling enables to generate spin currents from dynamical magnetization. Due to the nonlinearity of magnetization dynamics, the spin-current emission through the dynamical spin-exchange coupling offers a route for nonlinear generation of spin currents. Here, we demonstrate spin-current emission governed by nonlinear magnetization dynamics in a metal/magnetic insulator bilayer. The spin-current emission from the magnetic insulator is probed by the inverse spin Hall effect, which demonstrates nontrivial temperature and excitation power dependences of the voltage generation. The experimental results reveal that nonlinear magnetization dynamics and enhanced spin-current emission due to magnon scatterings are triggered by decreasing temperature. This result illustrates the crucial role of the nonlinear magnon interactions in the spin-current emission driven by dynamical magnetization, or nonequilibrium magnons, from magnetic insulators.-
dc.language영어-
dc.publisherNature Publishing Group-
dc.titleSpin-current emission governed by nonlinear spin dynamics-
dc.typeArticle-
dc.identifier.doi10.1038/srep15158-
dc.citation.journaltitleScientific Reports-
dc.identifier.wosid000362870400001-
dc.identifier.scopusid2-s2.0-84944259346-
dc.citation.volume5-
dc.description.isOpenAccessY-
dc.contributor.affiliatedAuthorKang, Keehoon-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.subject.keywordPlusFERROMAGNETIC-RESONANCE-
dc.subject.keywordPlusTEMPERATURE-DEPENDENCE-
dc.subject.keywordPlusENHANCEMENT-
dc.subject.keywordPlusWAVES-
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  • College of Engineering
  • Department of Materials Science & Engineering
Research Area Molecular doping in emerging semiconductors, Next-generation electronic devices, Transport phenomena in organic semiconductors

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