Abstract
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.
| Original language | English |
|---|---|
| Article number | 034074 |
| Journal | Physical Review Applied |
| Volume | 13 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2020 Mar |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Tateno, S., Nozaki, Y., & Nozaki, Y. (2020). Highly nonreciprocal spin waves excited by magnetoelastic coupling in a ni / si bilayer. Physical Review Applied, 13(1), [034074]. https://doi.org/10.1103/PhysRevApplied.13.034074