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Nonreciprocal propagation of surface acoustic wave in Ni/LiNbO3
- Source :
- Phys. Rev. B 95, 020407 (2017)
- Publication Year :
- 2016
-
Abstract
- We have investigated surface acoustic wave propagation in Ni/LiNbO$_3$ hybrid devices. We have found the absorption and phase velocity are dependent on the sign of wave vector in a device, which indicates the nonreciprocal propagation characteristic of systems with time reversal and spatial inversion simultaneously broken symmetries. The nonreciprocity is reversed by the 180$^\circ$ rotation of magnetic field. Nonreciprocity seems largely dependent on the shape of ferromagnetic Ni film. The origin of these observations is ascribed to film shape dependent magnetoelastic coupling.<br />Comment: 12 pages, 6 figures
- Subjects :
- Condensed Matter - Materials Science
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. B 95, 020407 (2017)
- Publication Type :
- Report
- Accession number :
- edsarx.1605.04058
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevB.95.020407