Spin-orbit torques in normal metal/Nb/ferromagnet heterostructures
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Min Hyeok | - |
dc.contributor.author | Go, Gyungchoon | - |
dc.contributor.author | Kim, Yong Jin | - |
dc.contributor.author | Cha, In Ho | - |
dc.contributor.author | Kim, Gyu Won | - |
dc.contributor.author | Kim, Taehyun | - |
dc.contributor.author | Lee, Kyung-Jin | - |
dc.contributor.author | Kim, Young Keun | - |
dc.date.accessioned | 2022-02-16T16:42:14Z | - |
dc.date.available | 2022-02-16T16:42:14Z | - |
dc.date.created | 2022-02-08 | - |
dc.date.issued | 2021-10-26 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/136002 | - |
dc.description.abstract | Quantifying the spin-orbit torque (SOT) efficiency with changing the layer thickness is crucial for understanding the physical background of SOT. This study investigates the Nb-thickness-dependent SOT efficiency of two types of layered heterostructures: Ta/Nb/CoFeB and Pt/Nb/CoFeB. We find that the Nb thickness dependence of the SOT efficiency in the two samples is quite different. In the Pt/Nb series, the SOT sign changes according to the thickness variation because Pt and Nb have different spin-orbit coupling signs. We observe the resulting reversal in switching polarity through current-induced SOT switching experiments. However, due to the same spin-orbit coupling signs of Ta and Nb, no such polarity reversal was observed in Ta/Nb series. Further, we extract the spin diffusion length of Nb in each heterostructure. These results provide a systematic understanding of the material- and thickness-dependent SOT characteristics. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | NATURE PORTFOLIO | - |
dc.subject | CURRENT-DRIVEN | - |
dc.subject | THICKNESS | - |
dc.title | Spin-orbit torques in normal metal/Nb/ferromagnet heterostructures | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Young Keun | - |
dc.identifier.doi | 10.1038/s41598-021-99745-4 | - |
dc.identifier.scopusid | 2-s2.0-85118202399 | - |
dc.identifier.wosid | 000711622600095 | - |
dc.identifier.bibliographicCitation | SCIENTIFIC REPORTS, v.11, no.1 | - |
dc.relation.isPartOf | SCIENTIFIC REPORTS | - |
dc.citation.title | SCIENTIFIC REPORTS | - |
dc.citation.volume | 11 | - |
dc.citation.number | 1 | - |
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.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | CURRENT-DRIVEN | - |
dc.subject.keywordPlus | THICKNESS | - |
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