The theory of direct magnetoelectric effect in the bilayer system of ferromagnetic–piezoelectric

Abstract

The theory of direct magnetoelectric (ME) effect in a bilayer of ferromagnetic and piezoelectric is developed taking into account nonuniform distribution of electrical field on a piezoelectric layer thickness. The simultaneous solution of the motion equations for piezoelectric and ferromagnetic mediums allowed to numerically and analytically calculate the dependence of natural mechanical oscillation on structure parameters and to determine the dependence of ME effect coefficient on frequency of the variable magnetic field.

Keywords

• Bilayer system
• magnetoelectric effect
• natural frequency of oscillations
• longitudinal magnetoelectric voltage coefficient
• nonuniform electric field