The present paper focuses on magnetoelectric (ME) interactions
under ferromagnetic resonance (FMR) in a bilayer of a ferrite and a
piezoelectric. Applying a dc electric field perpendicular to the sample
plane induces a uniaxial magnetic anisotropy. The effects of flexural
deformation and substrate clamping have been considered in determining the
electric field induced FMR line shift. The obtained model is applied to a
specific case of yttrium iron garnet/lead magnesium niobate-lead titanate.
Our studies indicate that flexural deformation gives rise to a decrease in
the strength of ME interaction for a free standing bilayer. The substrate
thickness dependence of FMR line shift reveals a maximum for the substrate
thickness that is approximately equal to that of the bilayer.