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Spin Seebeck effect in antiferromagnets and compensated ferrimagnets

反強磁性体及び補償効果を示すフェリ磁性体におけるスピンゼーベック効果

大沼 悠一; 安立 裕人; 齊藤 英治; 前川 禎通

Onuma, Yuichi; Adachi, Hiroto; Saito, Eiji; Maekawa, Sadamichi

We theoretically investigate the spin Seebeck effect (SSE) in antiferromagnets and ferrimagnets, and show that the SSE vanishes in antiferromagnets but survives in ferrimagnets even at the magnetization compensation point despite the absence of its saturation magnetization. The nonvanishing SSE in ferrimagnets stems from two nondegenerate magnons. We demonstrate that the magnitude of the SSE in ferrimagnets is unchanged across the magnetization compensation point.

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パーセンタイル:4.52

分野:Materials Science, Multidisciplinary

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