Spin current in metals and superconductors

Saburo Takahashi, Sadamichi Maekawa

Research output: Contribution to journalReview articlepeer-review

120 Citations (Scopus)

Abstract

The nonlocal spin transport in a nanostructure device consisting of ferromagnetic spin injector (F1) and spin detector (F2) electrodes connected to a normal conductor (N) or a superconductor (SC) is discussed. We explore how the spin transport in such a device depends on the nature of interface (metallic-contact or tunnel junction) and material parameters of electrodes by solving the spin-dependent transport equations, and obtain the conditions for efficient spin injection, spin accumulation, and spin current. In a device with SC, the spin transport is strongly affected by the onset of superconductivity. Nonlocal Spin Hall effect in metals and SCs are investigated. A superconducting qubit with a π junction is discussed.

Original languageEnglish
Article number031009
Journaljournal of the physical society of japan
Volume77
Issue number3
DOIs
Publication statusPublished - 2008 Mar 1

Keywords

  • Magnetic nanostructure
  • Spin Hall effect
  • Spin absorption
  • Spin accumulation
  • Spin current
  • Spin injection
  • Spin transport

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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