Stigloher, J. and Decker, M. and Koerner, H. S. and Tanabe, K. and Moriyama, T. and Taniguchi, T. and Hata, H. and Madami, M. and Gubbiotti, G. and Kobayashi, K. and Ono, T. and Back, C. H. (2016) Snell's Law for Spin Waves. PHYSICAL REVIEW LETTERS, 117 (3): 037204. ISSN 0031-9007, 1079-7114
Full text not available from this repository.Abstract
We report the experimental observation of Snell's law for magnetostatic spin waves in thin ferromagnetic Permalloy films by imaging incident, refracted, and reflected waves. We use a thickness step as the interface between two media with different dispersion relations. Since the dispersion relation for magnetostatic waves in thin ferromagnetic films is anisotropic, deviations from the isotropic Snell's law known in optics are observed for incidence angles larger than 25 degrees with respect to the interface normal between the two magnetic media. Furthermore, we can show that the thickness step modifies the wavelength and the amplitude of the incident waves. Our findings open up a new way of spin wave steering for magnonic applications.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BRILLOUIN LIGHT-SCATTERING; REFRACTION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Back > Group Christian Back |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Mar 2019 08:24 |
| Last Modified: | 21 Mar 2019 08:24 |
| URI: | https://pred.uni-regensburg.de/id/eprint/3633 |
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