Abstract
The present investigation focuses on magnetoelectric interactions in ferrite-piezoelectric bilayers in the ferromagnetic resonance (FMR) region. A dc electric field applied perpendicular to the sample plane gives rise to an in-plane strain that is transferred to the ferrite and produces a uniaxial thickness-dependent magnetic anisotropy. Expressions for microwave magnetic susceptibility are obtained taking into account the effects of flexural deformations. The results are applied to the specific case of yttrium iron garnet (YIG)/lead zirconate titanate (PZT). The study predicts the unique electric field dependence of FMR line broadening. For the specific YIG to PZT thickness ratio, magnetoelectric coupling results in a weak FMR line shift and considerable line broadening. The results are of interest for novel ferrite-piezoelectric microwave devices.
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