Nonlinear damping of high-power magnetostatic waves in yttrium-iron-garnet films

M.M. Scott, C.E. Patton, Mikhail Kostylev, B.A. Kalinikos

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    45 Citations (Scopus)

    Abstract

    The nonlinear decay of continuous-wave magnetostatic surface wave and backward volume wave signals has been measured for propagation in a narrow 6.9 mum thick yttrium-iron-garnet film strip, with excitation frequencies and wave numbers between 5470 and 5630 MHz and 47 and 216 rad/cm, respectively. The results show: (1) that the onset of nonlinear damping is a threshold effect, and (2) that a nonlinear decay model with two damping terms, one linear and one quadratic in the wave power, are needed to model the measured response. (C) 2004 American Institute of Physics.
    Original languageEnglish
    Pages (from-to)6294-6301
    JournalJournal of Applied Physics
    Volume95
    Issue number11
    DOIs
    Publication statusPublished - 2004

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