Magnetoelectric effect in a Ni-PZT-Ni cylindrical layered composite synthesized by electro-deposition

Magnetoelectric (ME) coupling of a cylindrical trilayered composite was studied in this paper. A Ni-lead zirconate titanate (PZT)-Ni trilayered cylindrical composite was synthesized by electro-deposition. The maximum ME voltage coefficient of the cylindrical ME composite is 35 V cm-1 Oe-1, about three times higher than that of the plate trilayered composite with the same raw materials and magnetostrictive-piezoelectric phase thickness ratio. The high ME voltage coefficient of the cylindrical composite is due to the self-bound effect of the circle. Moreover, the resulting complex condition can induce a double peak in the field dependence of the ME coefficient. (fast track communication)