The study of magnetic field-induced strain of Ni2MnGa/Pb(Zr0.52Ti0.48)O3 composite

The magnetoelectric coefficient of Ni2MnGa/PbZr0.52Ti0.48O3 bi-layer structure as a function of temperature is measured. A distinct peak of the magnetoelectric coefficient was observed near the martensitic transition point of Ni2MnGa alloy. The value of this peak is 6-7 times larger than the others at room temperature. The origin of the peak and the relation between the magnetoelectric peak and the martensitic transition is discussed. (c) 2006 Elsevier B.V. All rights reserved.