OBSERVATION OF SPIN-WAVE SPECTRUM IN AN INSTABILITY AND MODE-LOCKING EXPERIMENT
- 15 June 1970
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 16 (12), 534-536
- https://doi.org/10.1063/1.1653095
Abstract
Spin‐wave spectrum in an instability and mode‐locking experiment was observed by using a spectrum analyzer. The experiment confirms that spin‐wave side bands exist. The beating of the side bands with the central band is shown to be the cause for low‐frequency modulation of the reflected microwave power. When a low‐frequency acoustic wave was sent into the sample, the amplitude of the side bands increased at the expense of the central band. Therefore, the effect of magnetoelastic coupling can be used not only to lock the phases of the various spin‐wave modes but also to regulate their amplitudes.Keywords
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