Spin-Pump-Induced Spin Transport in p-Type Si at Room Temperature

被引:163
|
作者
Shikoh, Eiji [1 ]
Ando, Kazuya [2 ]
Kubo, Kazuki [1 ]
Saitoh, Eiji [2 ,3 ,4 ]
Shinjo, Teruya [1 ]
Shiraishi, Masashi [1 ,5 ]
机构
[1] Osaka Univ, Grad Sch Engn Sci, Toyonaka, Osaka 5608531, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[3] Japan Sci & Technol Agcy, CREST, Tokyo 1020075, Japan
[4] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
[5] Japan Sci & Technol Agcy, PRESTO, Tokyo 1020075, Japan
关键词
SILICON; SPINTRONICS; CONTACTS; FIELD;
D O I
10.1103/PhysRevLett.110.127201
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A spin battery concept is applied for the dynamical generation of pure spin current and spin transport in p-type silicon (p-Si). Ferromagnetic resonance and effective s-d coupling in Ni80Fe20 results in spin accumulation at the Ni80Fe20/p-Si interface, inducing spin injection and the generation of spin current in the p-Si. The pure spin current is converted to a charge current by the inverse spin Hall effect of Pd evaporated onto the p-Si. This approach demonstrates the generation and transport of pure spin current in p-Si at room temperature. DOI: 10.1103/PhysRevLett.110.127201
引用
收藏
页数:5
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