Nonlinear spin pumping induced by parametric excitation

K. Ando, T. An, E. Saitoh

研究成果: Article査読

31 被引用数 (Scopus)

抄録

Spin pumping driven by parametric spin excitation was observed in a Pt/La:Y3Fe5O12 film. We applied microwave with doubled frequency of the ferromagnetic resonance and detected a spin current emitted from the La:Y3Fe5O12 layer using the inverse spin-Hall effect (ISHE) in the Pt layer. In the ISHE signal, we found nonlinear dependence and threshold with respect to applied microwave power, demonstrating that the spin current generation is due to nonlinear coupling between microwave and spin dynamics. These results will be essential for developing active elements in spin current circuits.

本文言語English
論文番号092510
ジャーナルApplied Physics Letters
99
9
DOI
出版ステータスPublished - 2011 8月 29
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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