Magnetic field influence on the spectra of BAW resonator with ferrite layers

In this work we present further development of the theory and perform experiments of magnetoelastic interections in microwave high overton bulk acoustic wave composite resonator with ferromagnetic yttrium iron garnet epitaxial films. The experimental ant theoretical results obtained are in good agreement and prove the magnetic field influence on the spectra of transverse wave with polarization vector collinear with the field direction. In was experimentally demonstrated for the first time that near the ferromagnetic resonance frequencies the resonance frequencies of the resonator are rearranged in the whole intermodal interval by means of lateral bias magnetic field.