期刊
PHYSICAL REVIEW B
卷 83, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.83.094410
关键词
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资金
- MEXT, Japan [19048009, 22740210]
- Grants-in-Aid for Scientific Research [22740210, 22540346, 19048009] Funding Source: KAKEN
We formulate a linear response theory of the spin Seebeck effect, i.e., a spin voltage generation from heat current flowing in a ferromagnet. Our approach focuses on the collective magnetic excitation of spins, i.e., magnons. We show that the linear-response formulation provides us with a qualitative as well as quantitative understanding of the spin Seebeck effect observed in a prototypical magnet, yttrium iron garnet.
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