Spin Current Generation Using a Surface Acoustic Wave Generated via Spin-Rotation Coupling

D. Kobayashi, T. Yoshikawa, M. Matsuo, R. Iguchi, S. Maekawa, E. Saitoh, Yukio Nozaki

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We demonstrate the generation of alternating spin current (SC) via spin-rotation coupling (SRC) using a surface acoustic wave (SAW) in a Cu film. Ferromagnetic resonance caused by injecting SAWs was observed in a Ni-Fe film attached to a Cu film, with the resonance further found to be suppressed through the insertion of a SiO2 film into the interface. The intensity of the resonance depended on the angle between the wave vector of the SAW and the magnetization of the Ni-Fe film. This angular dependence is explicable in terms of the presence of spin transfer torque from a SC generated via SRC.

Original languageEnglish
Article number077202
JournalPhysical Review Letters
Volume119
Issue number7
DOIs
Publication statusPublished - 2017 Aug 16

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acoustics
ferromagnetic resonance
torque
insertion
magnetization

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Spin Current Generation Using a Surface Acoustic Wave Generated via Spin-Rotation Coupling. / Kobayashi, D.; Yoshikawa, T.; Matsuo, M.; Iguchi, R.; Maekawa, S.; Saitoh, E.; Nozaki, Yukio.

In: Physical Review Letters, Vol. 119, No. 7, 077202, 16.08.2017.

Research output: Contribution to journalArticle

Kobayashi, D. ; Yoshikawa, T. ; Matsuo, M. ; Iguchi, R. ; Maekawa, S. ; Saitoh, E. ; Nozaki, Yukio. / Spin Current Generation Using a Surface Acoustic Wave Generated via Spin-Rotation Coupling. In: Physical Review Letters. 2017 ; Vol. 119, No. 7.
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