Spectral shape deformation in inverse spin Hall voltage in Y3Fe5O12|Pt bilayers at high microwave power levels

J. Lustikova, Y. Shiomi, Y. Handa, E. Saitoh

研究成果: Article査読

7 被引用数 (Scopus)

抄録

We report on the deformation of microwave absorption spectra and of the inverse spin Hall voltage signals in thin film bilayers of yttrium iron garnet (YIG) and platinum at high microwave power levels in a 9.45-GHz TE011 cavity. As the microwave power increases from 0.15 to 200 mW, the resonance field shifts to higher values, and the initially Lorentzian spectra of the microwave absorption intensity as well as the inverse spin Hall voltage signals become asymmetric. The contributions from opening of the magnetization precession cone and heating of YIG cannot well reproduce the data. Control measurements of inverse spin Hall voltages on thin-film YIG|Pt systems with a range of line widths underscore the role of spin-wave excitations in spectral deformation.

本文言語English
論文番号073901
ジャーナルJournal of Applied Physics
117
7
DOI
出版ステータスPublished - 2015 2月 21

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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