Spin current and spin Hall effect in metallic nano-structures

Y. Otani, Takashi Kimura

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

Laterally configured ferromagnetic/nonmagnetic multiterminal structures have great potential for developing future spintronic devices. We demonstrate two kinds of novel spintronic devices. One is a lateral spin valve with noncollinear dual spin injectors by which the direction of the spin accumulation in a nonmagnetic metal can be changed by varying the currents injected by two spin injectors. The other is a transformer between spin and charge currents using the spin Hall effect. A large spin Hall conductivity of 260 S/cm at room temperature, which is 104 times larger than that in semiconductor systems, is found in the Pt wire. We also demonstrate the reciprocal relation between the spin and charge currents. Temperature dependence of the spin Hall conductivity is also discussed.

本文言語英語
論文番号4544927
ページ(範囲)1911-1915
ページ数5
ジャーナルIEEE Transactions on Magnetics
44
7
DOI
出版ステータス出版済み - 7 1 2008
外部発表はい

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

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