Nonlinear Characteristics of the Magnetostatic Surface Waves

Vishnu PRIYE, Makoto TSUTSUMI

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Summary :

In this paper, the dispersion characteristics of magnetostatic surface waves (MSSW) in a nonlinear gyromagnetic medium are analytically investigated. Assuming the nonlinearity as the first order perturbation in permeability tensor of the gyromagnetic medium, the perturbation technique based on the multiple scale method is used to deduce the nonlinear dispersion relations for the MSSW. It is observed that for a given propagation constant of the MSSW the frequency decreases with microwave power. It is also observed that group velocity decreases, and as a consequence, delay time increases with power of the microwave. By evaluating the dependence of frequency on power and variation of group velocity on propagation constant within the accuracy of the perturbation theory, it is confirmed that the conditions for formation of bright soliton are not satisfied for the MSSW.

Publication
IEICE TRANSACTIONS on Electronics Vol.E77-C No.11 pp.1740-1746
Publication Date
1994/11/25
Publicized
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Type of Manuscript
Special Section PAPER (Special Issue on Electromagnetic Theory)
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