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Observation of longitudinal spin-Seebeck effect in magnetic insulators

磁性絶縁体における縦型スピンゼーベック効果の観測

内田 健一*; 安立 裕人; 太田 岳*; 中山 裕康*; 前川 禎通; 齊藤 英治

Uchida, Kenichi*; Adachi, Hiroto; Ota, Takeru*; Nakayama, Hiroyasu*; Maekawa, Sadamichi; Saito, Eiji

We propose a longitudinal spin-Seebeck effect, in which a magnon-induced spin current is injected parallel to a temperature gradient from a ferromagnet into an attached paramagnetic metal. The longitudinal spin-Seebeck effect is measured in a simple and versatile system composed of a ferrimagnetic insulator Y$$_{3}$$Fe$$_{5}$$O$$_{12}$$ slab and a Pt film by means of the inverse spin-Hall effect. The experimental results highlight the intriguing character of the longitudinal spin-Seebeck effect due to its own geometric configuration.

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パーセンタイル:99.68

分野:Physics, Applied

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