Observation of Gyromagnetic Spin Wave Resonance in NiFe Films

Yuki Kurimune, Mamoru Matsuo, Yukio Nozaki

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


This Letter demonstrates spin wave resonance (SWR) owing to the gyromagnetic effect by propagating a Rayleigh-type surface acoustic wave (R-SAW) through ferromagnetic thin films. The SWR amplitude in a NiFe film shows a higher-order frequency variation than in a magnetoelastic Ni film. This frequency dependence is well understood in terms of the presence of a gyromagnetic field attributable to the local lattice rotation in the R-SAW. From the frequency dependence of the SWR amplitude, the gyromagnetic SWR could be separated from another SWR caused by a magnetoelastic effect of the ferromagnet.

Original languageEnglish
Article number21720517205
JournalPhysical review letters
Issue number21
Publication statusPublished - 2020 May 29

ASJC Scopus subject areas

  • General Physics and Astronomy


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