Ultrafast giant magnetic cooling effect in ferromagnetic Co/Pt multilayers
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shim, Je-Ho | - |
dc.contributor.author | Syed, Akbar Ali | - |
dc.contributor.author | Kim, Chul-Hoon | - |
dc.contributor.author | Lee, Kyung Min | - |
dc.contributor.author | Park, Seung-Young | - |
dc.contributor.author | Jeong, Jong-Ryul | - |
dc.contributor.author | Kim, Dong-Hyun | - |
dc.contributor.author | Kim, Dong Eon | - |
dc.date.accessioned | 2021-09-03T00:13:24Z | - |
dc.date.available | 2021-09-03T00:13:24Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2017-10-06 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/81935 | - |
dc.description.abstract | The magnetic cooling effect originates from a large change in entropy by the forced magnetization alignment, which has long been considered to be utilized as an alternative environment-friendly cooling technology compared to conventional refrigeration. However, an ultimate timescale of the magnetic cooling effect has never been studied yet. Here, we report that a giant magnetic cooling (up to 200 K) phenomenon exists in the Co/Pt nanomultilayers on a femtosecond timescale during the photoinduced demagnetization and remagnetization, where the disordered spins are more rapidly aligned, and thus magnetically cooled, by the external magnetic field via the lattice-spin interaction in the multilayer system. These findings were obtained by the extensive analysis of time-resolved magneto-optical responses with systematic variation of laser fluence as well as external field strength and direction. Ultrafast giant magnetic cooling observed in the present study can enable a new avenue to the realization of ultrafast magnetic devices. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | SPIN-LATTICE-RELAXATION | - |
dc.subject | ELECTRON | - |
dc.subject | DYNAMICS | - |
dc.subject | MAGNETOOPTICS | - |
dc.subject | FEMTOSECOND | - |
dc.subject | HYSTERESIS | - |
dc.subject | ANISOTROPY | - |
dc.subject | NICKEL | - |
dc.subject | FILMS | - |
dc.title | Ultrafast giant magnetic cooling effect in ferromagnetic Co/Pt multilayers | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Chul-Hoon | - |
dc.identifier.doi | 10.1038/s41467-017-00816-w | - |
dc.identifier.scopusid | 2-s2.0-85030752806 | - |
dc.identifier.wosid | 000412493800002 | - |
dc.identifier.bibliographicCitation | NATURE COMMUNICATIONS, v.8 | - |
dc.relation.isPartOf | NATURE COMMUNICATIONS | - |
dc.citation.title | NATURE COMMUNICATIONS | - |
dc.citation.volume | 8 | - |
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 | SPIN-LATTICE-RELAXATION | - |
dc.subject.keywordPlus | ELECTRON | - |
dc.subject.keywordPlus | DYNAMICS | - |
dc.subject.keywordPlus | MAGNETOOPTICS | - |
dc.subject.keywordPlus | FEMTOSECOND | - |
dc.subject.keywordPlus | HYSTERESIS | - |
dc.subject.keywordPlus | ANISOTROPY | - |
dc.subject.keywordPlus | NICKEL | - |
dc.subject.keywordPlus | FILMS | - |
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