Journal
JETP LETTERS
Volume 95, Issue 7, Pages 357-361Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0021364012070041
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Funding
- Ministry of Education and Science of the Russian Federation
- Russian Foundation for Basic Research [11-02-00661-a, 11-02-12109-ofi-m-2011]
- Deutsche Forschungsgemeinschaft
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The emergence of the self-modulation instability of monochromatic microwave spin waves excited in a periodic magnetic film structure, a magnonic crystal, has been observed. The magnonic crystal was fabricated by chemically etching the surface a single-crystal yttrium-iron garnet film. The self-modulation instability has been observed at the frequencies corresponding to the band gaps of the spin-wave spectrum of the magnonic crystal caused by Bragg resonances. Above a certain threshold value of the input microwave signal, the time profile of the output pulses corresponds to envelope solitons.
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