Observation of the modulation instability and spin wave solitons in ferromagnetic films under the conditions of coexistence of four-wave and three-wave parametric processes

Nonlinear phenomena that arise during the propagation of spin waves in thin ferromagnetic films under conditions of the simultaneous existence of three-wave and four-wave parametric processes have been investigated. Investigations have been performed for single-frequency and double-frequency regimes...

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Bibliographic Details
Published in:Physics of the solid state 2010-10, Vol.52 (10), p.2123-2128
Main Authors: Cherkasskiĭ, M. A., Kovshikov, N. G., Kalinikos, B. A.
Format: Article
Language:English
Subjects:
Analysis
Ferromagnetism
Magnetism and Ferroelectricity
Physics
Physics and Astronomy
Solid State Physics
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Summary:Nonlinear phenomena that arise during the propagation of spin waves in thin ferromagnetic films under conditions of the simultaneous existence of three-wave and four-wave parametric processes have been investigated. Investigations have been performed for single-frequency and double-frequency regimes of excitation of intense spin waves. The spontaneous modulation instability of the monochromatic running spin wave has been revealed for the first time at frequencies at which three-wave decay processes are allowed. The pronounced generation of a periodic sequence of bright spin wave solitons has been observed under excitation of two monochromatic spin waves at the same frequencies.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783410100173