Spin-transfer torques for domain wall motion in antiferromagnetically coupled ferrimagnets
DC Field | Value | Language |
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dc.contributor.author | Okuno, Takaya | - |
dc.contributor.author | Kim, Duck-Ho | - |
dc.contributor.author | Oh, Se-Hyeok | - |
dc.contributor.author | Kim, Se Kwon | - |
dc.contributor.author | Hirata, Yuushou | - |
dc.contributor.author | Nishimura, Tomoe | - |
dc.contributor.author | Ham, Woo Seung | - |
dc.contributor.author | Futakawa, Yasuhiro | - |
dc.contributor.author | Yoshikawa, Hiroki | - |
dc.contributor.author | Tsukamoto, Arata | - |
dc.contributor.author | Tserkovnyak, Yaroslav | - |
dc.contributor.author | Shiota, Yoichi | - |
dc.contributor.author | Moriyama, Takahiro | - |
dc.contributor.author | Kim, Kab-Jin | - |
dc.contributor.author | Lee, Kyung-Jin | - |
dc.contributor.author | Ono, Teruo | - |
dc.date.accessioned | 2021-09-01T07:45:32Z | - |
dc.date.available | 2021-09-01T07:45:32Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2019-09 | - |
dc.identifier.issn | 2520-1131 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/63054 | - |
dc.description.abstract | Antiferromagnetic 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.language | English | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | MAGNETIZATION DYNAMICS | - |
dc.title | Spin-transfer torques for domain wall motion in antiferromagnetically coupled ferrimagnets | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kyung-Jin | - |
dc.identifier.doi | 10.1038/s41928-019-0303-5 | - |
dc.identifier.scopusid | 2-s2.0-85072804146 | - |
dc.identifier.wosid | 000486394600008 | - |
dc.identifier.bibliographicCitation | NATURE ELECTRONICS, v.2, no.9, pp.389 - 393 | - |
dc.relation.isPartOf | NATURE ELECTRONICS | - |
dc.citation.title | NATURE ELECTRONICS | - |
dc.citation.volume | 2 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 389 | - |
dc.citation.endPage | 393 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Electrical & Electronic | - |
dc.subject.keywordPlus | MAGNETIZATION DYNAMICS | - |
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