Enhanced magnetoelectric effects in laminate composites ofTerfenol-D/Pb(Zr, TiO)3 with high-permeability FeCuNbSiB ribbon

Abstract

The enhancement of resonant magnetoelectric (ME) effectsis reported in the structure consisting of a piezoelectric PZT(Pb(Zr1 − xTix)O3) plate, a magnetostrictiveTerfenol-D (Tb1 − xDyxFe2 − y) plate, and multiple high-permeability FeCuNbSiB(Fe73.5Cu1Nb3Si13.5B9) ribbon plates. The FeCuNbSiB ribbon acts as the dynamic driver to increase the effectivepiezomagnetic coefficient of the Terfenol-D and enhances the effective mechanical quality factor (Qm) of the laminateowing to its high Qm, consequently resulting in the increase of the dynamic strain coefficient of Terfenol-D andthe resonant ME voltage coefficient (MEVC). The experimental results show that theTerfenol-D/PZT/FeCuNbSiB (MPF) composite with double-layer FeCuNbSiB ribbons canachieve a higher resonant MEVC than that with single-layer or other multilayer ribbons,which is 2–3 times as high as that of the Terfenol-D/PZT(MP) composite under a lowHdc. In addition, the ME voltage strongly depends onHdc, the maximumvalue of dVME/dHdc achieves 125.9 mV Oe − 1. The MPF laminate has potential for highly sensitive dc magnetic field sensing.