Abstract
The formation of light envelope solitons has been experimentally observed under the pulsed excitation and propagation of radio-frequency spin-wave packets in a magnon crystal, a periodic magnetic film structure. The magnon crystal has been fabricated from a thin single-crystal yttrium iron garnet (YIG) film. The envelope solitons have been excited at frequencies corresponding to the edges of the Bragg-resonance-induced band gaps of the spin-wave spectrum of the magnon crystal. A theoretical explanation of the observed phenomenon has been proposed with the use of the numerical simulation of the formation of solitons based on the nonlinear Schrödinger equation.
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Original Russian Text © A.V. Drozdovskii, M.A. Cherkasskii, A.B. Ustinov, N.G. Kovshikov, B.A. Kalinikos, 2010, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2010, Vol. 91, No. 1, pp. 17–22.
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Drozdovskii, A.V., Cherkasskii, M.A., Ustinov, A.B. et al. Formation of envelope solitons of spin-wave packets propagating in thin-film magnon crystals. Jetp Lett. 91, 16–20 (2010). https://doi.org/10.1134/S0021364010010042
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DOI: https://doi.org/10.1134/S0021364010010042