Spin Seebeck effect in antiferromagnets and compensated ferrimagnets

Yuichi Ohnuma; Hiroto Adachi; Eiji Saitoh; Sadamichi Maekawa

doi:10.1103/PhysRevB.87.014423

Spin Seebeck effect in antiferromagnets and compensated ferrimagnets

Yuichi Ohnuma, Hiroto Adachi, Eiji Saitoh, Sadamichi Maekawa

Research output: Contribution to journal › Article › peer-review

96 Citations (Scopus)

Abstract

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.

Original language	English
Article number	014423
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.87.014423
Publication status	Published - Jan 22 2013

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.87.014423

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abstract = "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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AU - Adachi, Hiroto

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Y1 - 2013/1/22

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AB - 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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Spin Seebeck effect in antiferromagnets and compensated ferrimagnets

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