Nonreciprocal attenuation of magnetoelastic surface waves
- 1 April 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 13 (7) , 3063-3070
- https://doi.org/10.1103/physrevb.13.3063
Abstract
The attenuation of Rayleigh-like surface waves on an insulating magnetic medium is calculated, particularly for waves propagating parallel with the magnetic field along a [111] direction in materials such as YIG; this attenuation results from the radiation of spin waves into the bulk rather than from magnetic resonance. Propagation is generally nonreciprocal (i.e., the attenuations of forward- and of backward-traveling waves differ) and the ratio of forward to backward attenuations can be large. The calculation makes allowance for a small elastic anisotropy and for small deviations from colinearity between the wave vector and the magnetic field.Keywords
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