Converse magnetoelectric effect in Ni(Terfenol-D)/Pb(Zr,Ti)O3 bilayer-laminated composite

Abstract

In this study, we propose a new bilayer-laminated magnetoelectric (ME) composite consisting of magnetostrictive Ni and Tb[Formula: see text]Dy[Formula: see text]Fe2 (Terfenol-D) plates and piezoelectric Pb(Zr,Ti)O3 (PZT) plate. The Ni–Terfenol–D-Ni/PZT composite is constructed and compared with the traditional Terfenol-D/PZT composite. The bias magnetic field and the electric field frequency dependences of the converse ME (CME) coefficient were investigated. It is shown that the Ni–Terfenol-D–Ni/PZT exhibits a large CME coefficient of 6.2 × 10[Formula: see text] s/m at the electric field frequency of 42 kHz under a low bias magnetic field of 230 Oe, which results from the highly concentrated flux induced by Ni and the stress-interaction between Ni and magnetostrictive Terfenol-D.