Observation of inverse spin Hall effect in ferromagnetic FePt alloys using spin Seebeck effect

被引:39
|
作者
Seki, Takeshi [1 ]
Uchida, Ken-ichi [1 ,2 ]
Kikkawa, Takashi [1 ,3 ]
Qiu, Zhiyong [3 ,4 ]
Saitoh, Eiji [1 ,3 ,4 ,5 ]
Takanashi, Koki [1 ]
机构
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Japan Sci & Technol Agcy, PRESTO, Saitama 3320012, Japan
[3] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan
[4] Japan Sci & Technol Agcy, ERATO, Spin Quantum Rectificat Project, Sendai, Miyagi 9808577, Japan
[5] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
基金
日本学术振兴会;
关键词
SEMICONDUCTORS; DEVICES;
D O I
10.1063/1.4929691
中图分类号
O59 [应用物理学];
学科分类号
摘要
We experimentally observed the inverse spin Hall effect (ISHE) of ferromagnetic FePt alloys. Spin Seebeck effect due to the temperature gradient generated the spin current (J(s)) in the FePt vertical bar Y3Fe5O12 (YIG) structure, and J(s) was injected from YIG to FePt and converted to the charge current through ISHE of FePt. The significant difference in magnetization switching fields for FePt and YIG led to the clear separation of the voltage of ISHE from that of anomalous Nernst effect in FePt. We also investigated the effect of ordering of FePt crystal structure on the magnitude of ISHE voltage in FePt. (C) 2015 AIP Publishing LLC.
引用
收藏
页数:4
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