Current-induced spin-wave Doppler shift and attenuation in compensated ferrimagnets

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dc.contributor.authorKim, Dong-Hyunko
dc.contributor.authorOh, Se-Hyeokko
dc.contributor.authorLee, Dong-Kyuko
dc.contributor.authorKim, Se Kwonko
dc.contributor.authorLee, Kyung-Jinko
dc.date.accessioned2021-02-26T05:30:11Z-
dc.date.available2021-02-26T05:30:11Z-
dc.date.created2021-01-21-
dc.date.issued2021-01-
dc.identifier.citationPHYSICAL REVIEW B, v.103, no.1, pp.014433-
dc.identifier.issn2469-9950-
dc.identifier.urihttp://hdl.handle.net/10203/281036-
dc.description.abstractWe theoretically and numerically study current-induced modification of ferrimagnetic spin-wave dynamics when an electrical current generates adiabatic and nonadiabatic spin-transfer torques. We find that the sign of the Doppler shift depends on the spin-wave handedness because the sign of spin polarization carried by spin waves depends on the spin-wave handedness. It also depends on the sign of the adiabatic-torque coefficient, originating from unequal contributions from two sublattices. For a positive nonadiabaticity of spin current, the attenuation lengths of both right- and left-handed spin waves increase when electrons move in the same direction with spin-wave propagation. Our result establishes a way to simultaneously measure important material parameters of a ferrimagnet, such as angular momentum compensation point, spin polarization, and nonadiabaticity using current-induced control of ferrimagnetic spin-wave dynamics.-
dc.languageEnglish-
dc.publisherAMER PHYSICAL SOC-
dc.titleCurrent-induced spin-wave Doppler shift and attenuation in compensated ferrimagnets-
dc.typeArticle-
dc.identifier.wosid000609012000003-
dc.identifier.scopusid2-s2.0-85100266610-
dc.type.rimsART-
dc.citation.volume103-
dc.citation.issue1-
dc.citation.beginningpage014433-
dc.citation.publicationnamePHYSICAL REVIEW B-
dc.identifier.doi10.1103/PhysRevB.103.014433-
dc.contributor.localauthorKim, Se Kwon-
dc.contributor.localauthorLee, Kyung-Jin-
dc.contributor.nonIdAuthorKim, Dong-Hyun-
dc.contributor.nonIdAuthorOh, Se-Hyeok-
dc.contributor.nonIdAuthorLee, Dong-Kyu-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusDOMAIN-WALL MOTION-
dc.subject.keywordPlusEMISSION-
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