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Observation of the spin Seebeck effect in epitaxial Fe$$_{3}$$O$$_{4}$$ thin films

マグネタイト薄膜におけるスピンゼーベック効果の観測

Ramos, R.*; 吉川 貴史*; 内田 健一*; 安立 裕人; Lucas, I.*; Aguirre, M.*; Algarabel, P.*; Morell$'o$n, L.*; 前川 禎通; 齊藤 英治; Ibarra, R.*

Ramos, R.*; Kikkawa, Takashi*; Uchida, Kenichi*; Adachi, Hiroto; Lucas, I.*; Aguirre, M.*; Algarabel, P.*; Morell$'o$n, L.*; Maekawa, Sadamichi; Saito, Eiji; Ibarra, R.*

We report the experimental observation of the spin Seebeck effect in magnetite thin films. The signal observed at temperatures above the Verwey transition is a contribution from both the anomalous Nernst (ANE) and spin Seebeck (SSE) effects. The contribution from the ANE of the Fe$$_{3}$$O$$_{4}$$ layer to the SSE is found to be negligible due to the resistivity difference between Fe$$_{3}$$O$$_{4}$$ and Pt layers. Below the Verwey transition, the SSE is free from the ANE of the ferromagnetic layer and it is also found to dominate over the ANE due to magnetic proximity effect on the Pt layer.

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パーセンタイル:2.46

分野:Physics, Applied

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