Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures

M. B. Jungfleisch, T. An, K. Ando, Y. Kajiwara, K. Uchida, V. I. Vasyuchka, A. V. Chumak, A. A. Serga, E. Saitoh, B. Hillebrands

研究成果: Article査読

45 被引用数 (Scopus)

抄録

We experimentally demonstrate the manipulation of magnetization relaxation utilizing a temperature difference across the thickness of an yttrium iron garnet/platinum hetero-structure: the damping is either increased or decreased depending on the sign of the temperature gradient. This effect might be explained by a thermally induced spin torque on the magnetization precession. The heat-induced variation of the damping is detected by microwave techniques as well as by a DC voltage caused by spin pumping into the adjacent Pt layer and the subsequent conversion into a charge current by the inverse spin Hall effect.

本文言語English
論文番号062417
ジャーナルApplied Physics Letters
102
6
DOI
出版ステータスPublished - 2013 2 11
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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