Efficient spin-orbit torque in magnetic trilayers using all three polarizations of a spin current

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dc.contributor.authorRyu, Jeongchunko
dc.contributor.authorThompson, Ryanko
dc.contributor.authorPark, Jae Yeolko
dc.contributor.authorKim, Seok-Jongko
dc.contributor.authorChoi, Gaeunko
dc.contributor.authorKang, Jaiminko
dc.contributor.authorJeong, Han Beomko
dc.contributor.authorKohda, Makotoko
dc.contributor.authorYuk, Jong Minko
dc.contributor.authorNitta, Junsakuko
dc.contributor.authorLee, Kyung-Jinko
dc.contributor.authorPark, Byong-Gukko
dc.date.accessioned2022-05-06T08:01:16Z-
dc.date.available2022-05-06T08:01:16Z-
dc.date.created2022-04-25-
dc.date.created2022-04-25-
dc.date.created2022-04-25-
dc.date.issued2022-04-
dc.identifier.citationNATURE ELECTRONICS, v.5, no.4, pp.217 - 223-
dc.identifier.issn2520-1131-
dc.identifier.urihttp://hdl.handle.net/10203/296409-
dc.description.abstractSpin-orbit coupling can convert a charge current into a spin current, thereby generating a spin-orbit torque (SOT). Energy-efficient, commercially viable SOT technology requires field-free switching of perpendicular magnetization at low current. In heterostructures incorporating ferromagnets, the polarization of spin current consists, in general, of three vectors: ((z) over cap x (E) over cap), (m) over cap and (m) over cap x ((z) over cap x (E) over cap), where (z) over cap is the film normal, E is the electric-field direction and in is the magnetization direction. Previous studies on SOT have used only part of all the three polarizations, because the two in-dependent polarizations are mutually orthogonal. Here we show that all the three polarizations can be exploited in systems with ferromagnet/non-magnet/ferromagnet trilayers, having a bottom epitaxial ferromagnet layer with a tilted magnetic easy axis. The approach reduces the field-free SOT switching current compared with approaches that exploit only part of all the three polarizations. We also show that this technique can be used with a sputtered polycrystalline trilayer, illustrating its potential applicability to mass production.-
dc.languageEnglish-
dc.publisherNATURE PORTFOLIO-
dc.titleEfficient spin-orbit torque in magnetic trilayers using all three polarizations of a spin current-
dc.typeArticle-
dc.identifier.wosid000779704600001-
dc.identifier.scopusid2-s2.0-85127694696-
dc.type.rimsART-
dc.citation.volume5-
dc.citation.issue4-
dc.citation.beginningpage217-
dc.citation.endingpage223-
dc.citation.publicationnameNATURE ELECTRONICS-
dc.identifier.doi10.1038/s41928-022-00735-9-
dc.contributor.localauthorYuk, Jong Min-
dc.contributor.localauthorLee, Kyung-Jin-
dc.contributor.localauthorPark, Byong-Guk-
dc.contributor.nonIdAuthorRyu, Jeongchun-
dc.contributor.nonIdAuthorThompson, Ryan-
dc.contributor.nonIdAuthorChoi, Gaeun-
dc.contributor.nonIdAuthorKohda, Makoto-
dc.contributor.nonIdAuthorNitta, Junsaku-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusPERPENDICULAR MAGNETIZATION-
dc.subject.keywordPlusFIELD-
dc.subject.keywordPlusSPINTRONICS-
dc.subject.keywordPlusSYMMETRY-
dc.subject.keywordPlusDYNAMICS-
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