Spin transport and relaxation in superconductors

T. Yamashita, S. Takahashi, H. Imamura, S. Maekawa

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We study theoretically the effect of spin relaxation on the spin transport in a ferromagnet/superconductor (FM/SC) tunnel junction. When spin-polarized electrons are injected into the SC from the FM, nonequilibrium spin accumulation as well as spin current are created in the range of the spin diffusion length in the SC. We find that the spin diffusion length in the superconducting state is the same as that in the normal state. We examine a FM/SC/SC double tunnel junction, and show that the spin current is detected by the Joule heat generated at the Josephson junction. This provides a method to obtain the spin diffusion length by probing the spin current in SC’s.

本文言語English
ページ(範囲)1-4
ページ数4
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
65
17
DOI
出版ステータスPublished - 2002
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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