Resonant magnetoelectric response of magnetostrictive/piezoelectric laminate composite in consideration of losses

The magnetostrictive/piezoelectric (MP) laminate composite has dramatically enhanced magnetoelectric (ME) effect when operating around resonance. The theoretical analysis of the resonant ME effect is investigated using the equivalent circuit method, in which the eddy current loss, the mechanical loss and the electric loss are all taken into account. The results indicate that, the mechanical loss plays a primary role in dissipations in resonant status, and a strong bias magnetic field is essential to restrain eddy current loss and improve the ME conversion efficiency.