Scattering theory of Gilbert damping

Arne Brataas, Yaroslav Tserkovnyak, Gerrit E.W. Bauer

研究成果: ジャーナルへの寄稿学術論文査読

144 被引用数 (Scopus)

抄録

The magnetization dynamics of a single domain ferromagnet in contact with a thermal bath is studied by scattering theory. We recover the Landau-Liftshitz-Gilbert equation and express the effective fields and Gilbert damping tensor in terms of the scattering matrix. Dissipation of magnetic energy equals energy current pumped out of the system by the time-dependent magnetization, with separable spin-relaxation induced bulk and spin-pumping generated interface contributions. In linear response, our scattering theory for the Gilbert damping tensor is equivalent with the Kubo formalism.

本文言語英語
論文番号037207
ジャーナルPhysical Review Letters
101
3
DOI
出版ステータス出版済み - 2008 7月 18

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