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

The enhancement of resonant magnetoelectric (ME) effects is reported in the structure consisting of a piezoelectric PZT (Pb(Zr1 − xTix)O3) plate, a magnetostrictive Terfenol-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 effective piezomagnetic coefficient of the Terfenol-D and enhances the effective mechanical quality factor (Qm) of the laminate owing to its high Qm, consequently resulting in the increase of the dynamic strain coefficient of Terfenol-D and the resonant ME voltage coefficient (MEVC). The experimental results show that the Terfenol-D/PZT/FeCuNbSiB (MPF) composite with double-layer FeCuNbSiB ribbons can achieve 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 low Hdc. In addition, the ME voltage strongly depends on Hdc, the maximum value of dVME/dHdc achieves 125.9 mV Oe − 1. The MPF laminate has potential for highly sensitive dc magnetic field sensing.