DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Geun-Hee | ko |
dc.contributor.author | Lee, Taekhyeon | ko |
dc.contributor.author | Cao Van, Phuoc | ko |
dc.contributor.author | Kim, Dongha | ko |
dc.contributor.author | Seo, Min-Kyo | ko |
dc.contributor.author | Jo, Younghun | ko |
dc.contributor.author | Jeong, Jong-Ryul | ko |
dc.contributor.author | Kim, Kab-Jin | ko |
dc.date.accessioned | 2021-12-07T06:42:38Z | - |
dc.date.available | 2021-12-07T06:42:38Z | - |
dc.date.created | 2021-12-07 | - |
dc.date.created | 2021-12-07 | - |
dc.date.issued | 2021-10 | - |
dc.identifier.citation | APPLIED PHYSICS LETTERS, v.119, no.15 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | http://hdl.handle.net/10203/290114 | - |
dc.description.abstract | The non-equilibrium state between magnons and phonons is the key to understand the spin-caloric phenomena. We developed a unique optical reflectometry technique to spatially resolve Kerr angle ( theta K) and optical reflectance ( R) in a magnetic insulator-thulium iron garnet (TmIG). The TmIG was subjected to a thermal gradient to estimate populations of thermally excited magnons and phonons through the variation of theta K and R. The results showed that the spatial gradient of theta K is different from that of R, indicating the non-equilibrium state between magnons and phonons. Particularly, the characteristic decay length of theta K was significantly influenced by the heating power and the magnetic field, suggesting non-linear magnon scattering in a high magnon density regime. Our work not only provides a scheme to investigate the spatial profiles of magnons and phonons but also reveals the magnon-phonon non-equilibrium in TmIG. Hence, this report will stimulate further studies based on magnon-phonon non-equilibrium such as a transverse spin Seebeck effect and Bose-Einstein condensation. | - |
dc.language | English | - |
dc.publisher | AIP Publishing | - |
dc.title | Study of magnon-phonon non-equilibrium in a magnetic insulator-Thulium iron garnet | - |
dc.type | Article | - |
dc.identifier.wosid | 000721694000015 | - |
dc.identifier.scopusid | 2-s2.0-85117017975 | - |
dc.type.rims | ART | - |
dc.citation.volume | 119 | - |
dc.citation.issue | 15 | - |
dc.citation.publicationname | APPLIED PHYSICS LETTERS | - |
dc.identifier.doi | 10.1063/5.0062751 | - |
dc.contributor.localauthor | Seo, Min-Kyo | - |
dc.contributor.localauthor | Kim, Kab-Jin | - |
dc.contributor.nonIdAuthor | Cao Van, Phuoc | - |
dc.contributor.nonIdAuthor | Jo, Younghun | - |
dc.contributor.nonIdAuthor | Jeong, Jong-Ryul | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ROOM-TEMPERATURE | - |
dc.subject.keywordPlus | TRANSPORT | - |
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