Electron-phonon coupling parameter of ferromagnetic metal fe and co
DC Field | Value | Language |
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dc.contributor.author | Kang, Kyuhwe | - |
dc.contributor.author | Gyung-Min Choi | - |
dc.date.accessioned | 2021-07-12T05:30:10Z | - |
dc.date.accessioned | 2021-07-12T05:30:10Z | - |
dc.date.available | 2021-07-12T05:30:10Z | - |
dc.date.available | 2021-07-12T05:30:10Z | - |
dc.date.created | 2021-07-07 | - |
dc.date.issued | 2021-06 | - |
dc.identifier.issn | 1996-1944 | - |
dc.identifier.uri | https://pr.ibs.re.kr/handle/8788114/9917 | - |
dc.description.abstract | © 2021 by the authors. Licensee MDPI, Basel, Switzerland.The electron-phonon coupling (g) parameter plays a critical role in the ultrafast transport of heat, charge, and spin in metallic materials. However, the exact determination of the g parameter is challenging because of the complicated process during the non-equilibrium state. In this study, we investigate the g parameters of ferromagnetic 3d transition metal (FM) layers, Fe and Co, using time-domain thermoreflectance. We measure a transient increase in temperature of Au in an FM/Au bilayer; the Au layer efficiently detects the strong heat flow during the non-equilibrium between electrons and phonons in FM. The g parameter of the FM is determined by analyzing the temperature dynamics using thermal circuit modeling. The determined g values are 8.8–9.4 × 1017 W m−3 K−1 for Fe and 9.6–12.2 × 1017 W m−3 K−1 for Co. Our results demonstrate that all 3d transition FMs have a similar g value, in the order of 1018 W m−3 K−1. | - |
dc.language | 영어 | - |
dc.publisher | MDPI AG | - |
dc.title | Electron-phonon coupling parameter of ferromagnetic metal fe and co | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.identifier.wosid | 000660946200001 | - |
dc.identifier.scopusid | 2-s2.0-85107111440 | - |
dc.identifier.rimsid | 75977 | - |
dc.contributor.affiliatedAuthor | Gyung-Min Choi | - |
dc.identifier.doi | 10.3390/ma14112755 | - |
dc.identifier.bibliographicCitation | Materials, v.14, no.11 | - |
dc.relation.isPartOf | Materials | - |
dc.citation.title | Materials | - |
dc.citation.volume | 14 | - |
dc.citation.number | 11 | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | THERMAL-CONDUCTIVITY | - |
dc.subject.keywordPlus | ENERGY RELAXATION | - |
dc.subject.keywordPlus | FEMTOSECOND | - |
dc.subject.keywordPlus | DYNAMICS | - |
dc.subject.keywordPlus | CR | - |
dc.subject.keywordAuthor | Electron-phonon coupling | - |
dc.subject.keywordAuthor | Nanoscale thermal transport | - |
dc.subject.keywordAuthor | Time-resolved spectroscopy | - |