Separation of longitudinal spin Seebeck effect from anomalous Nernst effect; Determination of origin of transverse thermoelectric voltage in metal/insulator junctions

異常ネルンスト効果と縦型スピンゼーベック効果の分離; 金属/絶縁体接合部における横熱起電力の起源の決定

吉川 貴史*; 内田 健一*; 大門 俊介*; 塩見 雄毅*; 安立 裕人; Qiu, Z.*; Hou, D.*; Jin, X.-F.*; 前川 禎通; 齊藤 英治

Kikkawa, Takashi*; Uchida, Kenichi*; Daimon, Shunsuke*; Shiomi, Yuki*; Adachi, Hiroto; Qiu, Z.*; Hou, D.*; Jin, X.-F.*; Maekawa, Sadamichi; Saito, Eiji

The longitudinal spin Seebeck effect and the anomalous Nernst effect are investigated in various metal/insulator junction systems, and the clear separation of the longitudinal spin Seebeck effect from the anomalous Nernst effect induced by static magnetic proximity is demonstrated. It is shown that, in Pt/YFeO samples, the longitudinal spin Seebeck effect is three orders of magnitude greater than the proximity-driven anomalous Nernst effect.