Magnetoelectric effect in three-layer ferrite-piezoelectric structure in field of magnetic resonance

Abstract

The paper presents the results of consideration of the magnetoelectric effect in ferrite-piezoelectric layered structures in the field of ferromagnetic resonance. The electric field applied to the piezoelectric layer leads to the deformation of the ferrite layer. As a result, induced magnetic anisotropy is obtained in the ferrite component which is generally non-uniform across the thickness. A theoretical model for describing the external electric field effect on microwave magnetic susceptibility has been investigated. The flexural deformations of the sample have been considered in the calculations. The result of modeling has been studied on the example of three-layer structures based on nickel ferrite and lead-zirconate titanate. It is shown that an external electric field leads to a broadening of the magnetic resonance line. The magnitude of resonance line broadening is determined by the layer thickness ratio. The results are of importance for ferrite-piezoelectric microwave devices.