Abstract
A theoretical analysis is made of the formation and evolution of modulational instability of a traveling magnetostatic spin wave in a ferromagnetic film. Results of earlier experiments are analyzed and it is demonstrated that the experimental results can be explained using a model describing the evolution of the signal wave and initial noise allowing for their nonlinear interaction. The instability process is simulated numerically and the results are compared with calculations using a deterministic model. Mechanisms are discussed for the loss of spectral symmetry in the formation of modulation frequency satellites.
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Zh. Éksp. Teor. Fiz. 114, 628–639 (August 1998)
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Savchenko, L.L., Nikitov, S.A., Popov, A.F. et al. Amplification of spin oscillation noise by self-modulation in a traveling magnetostatic wave. J. Exp. Theor. Phys. 87, 342–348 (1998). https://doi.org/10.1134/1.558665
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DOI: https://doi.org/10.1134/1.558665