{"title":"自旋泵入量子自旋向列态","authors":"Takuto Ishikawa, Wolfgang Belzig, Takeo Kato","doi":"arxiv-2409.08246","DOIUrl":null,"url":null,"abstract":"We theoretically study spin pumping into a spin-nematic state in a junction\nsystem composed of a ferromagnetic insulator and a spin-nematic insulator,\ndescribed by using the spin-1 bilinear-biquadratic model. We analyze an\nincrease of the Gilbert damping in ferromagnetic resonance (FMR) due to an\ninterfacial exchange coupling within a mean-field theory based on the Schwinger\nboson method. We find that the two Schwinger bosons contribute in distinct ways\nto spin pumping. We report a detailed dependence of the spin pumping on a\nresonant frequency, a magnetic field, and an interface type.","PeriodicalId":501137,"journal":{"name":"arXiv - PHYS - Mesoscale and Nanoscale Physics","volume":"74 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Spin pumping into quantum spin nematic states\",\"authors\":\"Takuto Ishikawa, Wolfgang Belzig, Takeo Kato\",\"doi\":\"arxiv-2409.08246\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We theoretically study spin pumping into a spin-nematic state in a junction\\nsystem composed of a ferromagnetic insulator and a spin-nematic insulator,\\ndescribed by using the spin-1 bilinear-biquadratic model. We analyze an\\nincrease of the Gilbert damping in ferromagnetic resonance (FMR) due to an\\ninterfacial exchange coupling within a mean-field theory based on the Schwinger\\nboson method. We find that the two Schwinger bosons contribute in distinct ways\\nto spin pumping. We report a detailed dependence of the spin pumping on a\\nresonant frequency, a magnetic field, and an interface type.\",\"PeriodicalId\":501137,\"journal\":{\"name\":\"arXiv - PHYS - Mesoscale and Nanoscale Physics\",\"volume\":\"74 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Mesoscale and Nanoscale Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.08246\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Mesoscale and Nanoscale Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.08246","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
We theoretically study spin pumping into a spin-nematic state in a junction
system composed of a ferromagnetic insulator and a spin-nematic insulator,
described by using the spin-1 bilinear-biquadratic model. We analyze an
increase of the Gilbert damping in ferromagnetic resonance (FMR) due to an
interfacial exchange coupling within a mean-field theory based on the Schwinger
boson method. We find that the two Schwinger bosons contribute in distinct ways
to spin pumping. We report a detailed dependence of the spin pumping on a
resonant frequency, a magnetic field, and an interface type.
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