Universality of the spin pumping in metallic bilayer films

T. Yoshino, K. Ando, K. Harii, H. Nakayama, Y. Kajiwara, E. Saitoh

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We show a clear guideline for generating a large spin current using the spin pumping in metallic bilayer films. We measured spin currents generated by the spin pumping in Ni1-x Fex /Pt bilayer films using the inverse spin-Hall effect (ISHE). The magnitude of the ISHE signals are well reproduced by a calculation based on the model of the spin pumping. The result shows that the amplitude of a spin current is universally determined by the product of the saturation magnetization, the additional damping constant, and the solid angle of the magnetization precession.

Original languageEnglish
Article number132503
JournalApplied Physics Letters
Volume98
Issue number13
DOIs
Publication statusPublished - 2011 Mar 28

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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