Magnetoelectric effect in magnetostrictive/piezoelectric laminate composite Terfenol-D/LiNbO3 [(zxtw)-129°/30°]

A magnetoelectric (ME) laminate composite consisting of a new cut type [(zxtw)-129 degrees/30 degrees] piezoelectric LiNbO3 single crystal and the magnetostrictive Tb1-xDyxFe2-y has been developed and its ME effect has been studied. Our small laminate shows a superior ME voltage coefficient (alpha(E)). A wide bandwidth of the frequency peak under a fixed magnetic bias field and a wide bandwidth of optimized magnetic bias field under a high fixed frequency were also observed. The largest value of alpha(E) is 2.31 V/cm Oe at 160 kHz when the magnetic bias field reaches 1.76 kOe. (c) 2006 American Institute of Physics.