Spin-transfer torques for domain wall motion in antiferromagnetically coupled ferrimagnets

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dc.contributor.authorOkuno, Takayako
dc.contributor.authorKim, Duck-Hoko
dc.contributor.authorOh, Se-Hyeokko
dc.contributor.authorKim, Se Kwonko
dc.contributor.authorHirata, Yuushouko
dc.contributor.authorNishimura, Tomoeko
dc.contributor.authorHam, Woo Seungko
dc.contributor.authorFutakawa, Yasuhiroko
dc.contributor.authorYoshikawa, Hirokiko
dc.contributor.authorTsukamoto, Aratako
dc.contributor.authorTserkovnyak, Yaroslavko
dc.contributor.authorShiota, Yoichiko
dc.contributor.authorMoriyama, Takahiroko
dc.contributor.authorKim, Kab-Jinko
dc.contributor.authorLee, Kyung-Jinko
dc.contributor.authorOno, Teruoko
dc.date.accessioned2019-10-10T07:30:12Z-
dc.date.available2019-10-10T07:30:12Z-
dc.date.created2019-10-07-
dc.date.created2019-10-07-
dc.date.created2019-10-07-
dc.date.created2019-10-07-
dc.date.created2019-10-07-
dc.date.created2019-10-07-
dc.date.created2019-10-07-
dc.date.created2019-10-07-
dc.date.issued2019-09-
dc.identifier.citationNATURE ELECTRONICS, v.2, no.9, pp.389 - 393-
dc.identifier.issn2520-1131-
dc.identifier.urihttp://hdl.handle.net/10203/267893-
dc.description.abstractAntiferromagnetic materials offer ultrafast spin dynamics and could be used to build devices that are orders of magnitude faster than those based on ferromagnetic materials. Spin-transfer torque is key to the electrical control of spins and has been demonstrated in ferromagnetic spintronics. However, experimental exploration of spin-transfer torque in antiferromagnets remains limited, despite a number of theoretical studies. Here, we report an experimental examination of the effects of spintransfer torque on the motion of domain walls in antiferromagnetically coupled ferrimagnets. Using a ferrimagnetic gadolinium-iron-cobalt (GdFeCo) alloy in which Gd and FeCo moments are coupled antiferromagnetically, we find that non-adiabatic spin-transfer torque acts like a staggered magnetic field, providing efficient control of the domain walls. We also show that the non-adiabaticity parameter of the spin-transfer torque is significantly larger than the Gilbert damping parameter, in contrast to the case of non-adiabatic spin-transfer torque in ferromagnets.-
dc.languageEnglish-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleSpin-transfer torques for domain wall motion in antiferromagnetically coupled ferrimagnets-
dc.typeArticle-
dc.identifier.wosid000486394600008-
dc.identifier.scopusid2-s2.0-85072804146-
dc.type.rimsART-
dc.citation.volume2-
dc.citation.issue9-
dc.citation.beginningpage389-
dc.citation.endingpage393-
dc.citation.publicationnameNATURE ELECTRONICS-
dc.identifier.doi10.1038/s41928-019-0303-5-
dc.contributor.localauthorKim, Se Kwon-
dc.contributor.localauthorKim, Kab-Jin-
dc.contributor.localauthorLee, Kyung-Jin-
dc.contributor.nonIdAuthorOkuno, Takaya-
dc.contributor.nonIdAuthorKim, Duck-Ho-
dc.contributor.nonIdAuthorOh, Se-Hyeok-
dc.contributor.nonIdAuthorHirata, Yuushou-
dc.contributor.nonIdAuthorNishimura, Tomoe-
dc.contributor.nonIdAuthorHam, Woo Seung-
dc.contributor.nonIdAuthorFutakawa, Yasuhiro-
dc.contributor.nonIdAuthorYoshikawa, Hiroki-
dc.contributor.nonIdAuthorTsukamoto, Arata-
dc.contributor.nonIdAuthorTserkovnyak, Yaroslav-
dc.contributor.nonIdAuthorShiota, Yoichi-
dc.contributor.nonIdAuthorMoriyama, Takahiro-
dc.contributor.nonIdAuthorOno, Teruo-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusMAGNETIZATION DYNAMICS-
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