Propagating volume and localized spin wave modes on a lattice of circular magnetic antidots

Mikhail Kostylev, G. Gubbiotti, G. Carlotti, G. Socino, S. Tacchi, CC Wang, N. Singh, A.O. Adeyeye, Robert Stamps

    Research output: Contribution to journalArticlepeer-review

    54 Citations (Scopus)

    Abstract

    The spectrum of spin wave excitations on a nanometric two-dimensional periodical array of circular holes in a magnetic film was measured using the Brillouin light scattering technique. Two modes with positive group velocity in the frequency range between 4 and 7 GHz were observed. Our calculations show that these correspond to the two lowest modes propagating along the edges of an effective stripe waveguide, perpendicular to the applied field, whose width is equal to the interhole distance. Moreover, a number of higher-frequency modes has been measured and identified as volume excitations of the same effective stripe. (c) 2008 American Institute of Physics.
    Original languageEnglish
    Pages (from-to)online - approx 5-20pp
    JournalJournal of Applied Physics
    Volume103
    Issue number7
    DOIs
    Publication statusPublished - 2008

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