Scattering of surface and volume spin waves in a magnonic crystal

A.V. Chumak, A.A. Serga, S. Wolff, B. Hillebrands, Mikhail Kostylev

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    The operational characteristics of a magnonic crystal, which was fabricated as an array of shallow grooves on a surface of a magnetic film, were compared for magnetostatic surface spin waves and backward volume magnetostatic spin waves. The rejection frequency bands formation was studied as a function of the grooves depth. It has been found that the rejection of the volume wave is considerably larger than of the surface one. The influences of the nonreciprocity of the surface spin waves, as well as of the scattering of the lowest volume spin-wave mode into higher ones on the rejection efficiency are discussed.
    Original languageEnglish
    Pages (from-to)Article number 172511, 3pp
    JournalApplied Physics Letters
    Issue number17
    Publication statusPublished - 2009


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