Angular dependence of inverse spin-Hall effect induced by spin pumping: Experimental verification of phenomenological model of spin pumping

K. Ando, T. Yoshino, N. Okamoto, Y. Kajiwara, K. Sasage, K. Uchida, E. Saitoh

Research output: Contribution to journalArticle

Abstract

The phenomenological model of the spin pumping has been investigated in terms of the polar-angular dependence of the inverse spin-Hall effect induced by the spin pumping in F/Pt thin films (F = Ni, Ni81 Fe19, and Fe). The magnetization dynamics in the ferromagnetic layer drives the spin pumping, which generates a spin current in the Pt layer. This spin current is converted into a charge current via the strong inverse spin-Hall effect in the Pt layer and detected as electromotive force at the edges of the Pt layer. The polar-angular dependence of the electromotive force is well reproduced by a model based on the Landau-Lifshitz-Gilbert equation combined with the phenomenological models of the spin pumping and the inverse spin-Hall effect regardless of the species of the ferromagnetic layer, demonstrating the validity of the phenomenological model of the spin pumping.

Original languageEnglish
Pages (from-to)1422-1424
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume322
Issue number9-12
DOIs
Publication statusPublished - 2010 May 1

Keywords

  • Spin current
  • Spin pumping
  • Spin-Hall effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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