The effect of dissipation on the structure of quasi-solitonic states of nonlinear magnetically ordered media under high-frequency point influence

The dynamics of a one-dimensional magnetic system in an external spatially localized high-frequency field were analyzed analytically (in the framework of perturbation theory and qualitative approach) and numerically. For the case of direct nonlinear resonance we found the dependence of local state a...

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Bibliographic Details
Published in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2013-02, Vol.39 (2), p.140-146
Main Authors: Belan, V. I., Kovalev, A. S., Peretyat'ko, A. A.
Format: Article
Language:English
Subjects:
Amplitudes
Dissipation
Dynamical systems
Instability
Low temperature physics
Magnetic resonance
Nonlinear dynamics
Nonlinearity
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Summary:The dynamics of a one-dimensional magnetic system in an external spatially localized high-frequency field were analyzed analytically (in the framework of perturbation theory and qualitative approach) and numerically. For the case of direct nonlinear resonance we found the dependence of local state amplitudes on the amplitude of the external field for different values of external field frequency and the damping parameter. Hysteresis character of the field dependence and the appearance of “instability windows”, where additional nutation of magnetic moments occurs, are also noted.
ISSN:1063-777X
1090-6517
DOI:10.1063/1.4792298