Enhanced spin-orbit torque via interface engineering in Pt/CoFeB/MgO heterostructures
DC Field | Value | Language |
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dc.contributor.author | Lee, Hae-Yeon | - |
dc.contributor.author | Kim, Sanghoon | - |
dc.contributor.author | Park, June-Young | - |
dc.contributor.author | Oh, Young-Wan | - |
dc.contributor.author | Park, Seung-Young | - |
dc.contributor.author | Ham, Wooseung | - |
dc.contributor.author | Kotani, Yoshinori | - |
dc.contributor.author | Nakamura, Tetsuya | - |
dc.contributor.author | Suzuki, Motohiro | - |
dc.contributor.author | Ono, Teruo | - |
dc.contributor.author | Lee, Kyung-Jin | - |
dc.contributor.author | Park, Byong-Guk | - |
dc.date.accessioned | 2021-09-01T18:04:04Z | - |
dc.date.available | 2021-09-01T18:04:04Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-03 | - |
dc.identifier.issn | 2166-532X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/67113 | - |
dc.description.abstract | Spin-orbit torque facilitates efficient magnetisation switching via an in-plane current in perpendicularly magnetised heavy-metal/ferromagnet heterostructures. The efficiency of spin-orbit-torque-induced switching is determined by the charge-to-spin conversion arising from either bulk or interfacial spin-orbit interactions or both. Here, we demonstrate that the spin-orbit torque and the resultant switching efficiency in Pt/CoFeB systems are significantly enhanced by an interfacial modification involving Ti insertion between the Pt and CoFeB layers. Spin pumping and X-ray magnetic circular dichroism experiments reveal that this enhancement is due to an additional interface-generated spin current of the non-magnetic interface and/or improved spin transparency achieved by suppressing the proximity-induced moment in the Pt layer. Our results demonstrate that interface engineering affords an effective approach to improve spin-orbit torque and thereby magnetisation switching efficiency. (C) 2019 Author(s). | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER INST PHYSICS | - |
dc.subject | CURRENT-DRIVEN DYNAMICS | - |
dc.subject | MAGNITUDE | - |
dc.subject | COFEB | - |
dc.title | Enhanced spin-orbit torque via interface engineering in Pt/CoFeB/MgO heterostructures | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kyung-Jin | - |
dc.identifier.doi | 10.1063/1.5084201 | - |
dc.identifier.scopusid | 2-s2.0-85063574698 | - |
dc.identifier.wosid | 000462880800013 | - |
dc.identifier.bibliographicCitation | APL MATERIALS, v.7, no.3 | - |
dc.relation.isPartOf | APL MATERIALS | - |
dc.citation.title | APL MATERIALS | - |
dc.citation.volume | 7 | - |
dc.citation.number | 3 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | CURRENT-DRIVEN DYNAMICS | - |
dc.subject.keywordPlus | MAGNITUDE | - |
dc.subject.keywordPlus | COFEB | - |
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