Partial frequency band gap in one-dimensional magnonic crystals

Mikhail Kostylev, Philip Schrader, Robert Stamps, G. Gubbiotti, G. Carlotti, A.O. Adeyeye, S. Goolaup, N. Singh

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    95 Citations (Scopus)
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    Abstract

    Collective spin wave modes propagating in an array of magnetic stripes coupled by dynamic dipole interaction are investigated by Brillouin light scattering. It is demonstrated that this structure supports propagation of discrete spin waves at any angle with respect to the stripes length. The data are interpreted using a theoretical model based on the Bloch wave approach. It is shown that, due to the one-dimensional artificial periodicity of the medium, the gaps in the spin wave spectrum are partial: the frequency passbands for propagation along the direction of periodicity overlap with the stop bands for propagation along the stripes.
    Original languageEnglish
    Pages (from-to)online - approx 5-20pp
    JournalApplied Physics Letters
    Volume92
    Issue number13
    DOIs
    Publication statusPublished - 2008

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