Optimum condition for spin-current generation from magnetization precession in thin film systems

K. Ando, T. Yoshino, E. Saitoh

研究成果: Article査読

78 被引用数 (Scopus)

抄録

The generation efficiency of spin currents induced by a magnetization-precession motion in a thin film system has been investigated in terms of a magnetization-precession trajectory. By using the Landau-Lifshitz-Gilbert equation combined with the phenomenological model of the spin pumping, the generation efficiency is calculated to be equal to the elliptical orbit area of magnetization precession, which is maximized when the precession trajectory is distorted. This calculation well reproduces experimental results on the magnetization-angle dependence of the inverse spin-Hall signal induced by the spin pumping in a Ni81 Fe19 /Pt bilayer film.

本文言語English
論文番号152509
ジャーナルApplied Physics Letters
94
15
DOI
出版ステータスPublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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