Highly nonreciprocal spin waves excited by magnetoelastic coupling in a ni / si bilayer

Shoma Tateno, Yukio Nozaki, Yukio Nozaki

研究成果: Article査読

10 被引用数 (Scopus)

抄録

We demonstrate a largely enhanced nonreciprocal propagation of spin waves (SWs) magnetoelastically excited in Ni/Si bilayer films. The nonreciprocity is attributed to the shear component of the strain tensor, which can be enlarged by increasing the thickness of the Si layer. By evaporating a 400-nm-thick Si layer on a Ni film, we enhanced the nonreciprocal ratio by up to 1200%. This finding paves the way for rectification of SWs in magnonic devices.

本文言語English
論文番号034074
ジャーナルPhysical Review Applied
13
1
DOI
出版ステータスPublished - 2020 3

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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