Enhanced magnetoelectric effect in three-phase MnZnFe2O4/Tb1-xDyxFe2-y/Pb(Zr,Ti)O-3 composites

TR Number
Date
2006-12-15
Journal Title
Journal ISSN
Volume Title
Publisher
American Institute of Physics
Abstract

Three-phase magnetoelectric (ME) laminate composites made of high-permeability (mu) MnZnFe2O4, magnetostrictive Tb1-xDyxFe2-y, and piezoelectric Pb(Zr,Ti)O-3 layers and operated in longitudinal magnetization and transverse polarization (L-T) bending modes have been studied. High-mu MnZnFe2O4 layers act as flux concentrators. This results in increased apparent piezomagnetic coefficients in the magnetostrictive Tb1-xDyxFe2-y layer and consequently larger induced voltages across the piezoelectric Pb(Zr,Ti)O-3 layers. We find the enhanced ME field coefficients of up to 8 times for longitudinal magnetization mode, and up to 28 times for transverse magnetization mode, under small dc magnetic field bias. (c) 2006 American Institute of Physics.

Description
Keywords
Zinc, Laminates, Piezoelectric films, Magnetoelectric effects, Piezoelectric transducers
Citation
Dong, Shuxiang, Zhai, Junyi, Li, Jiefang, Viehland, D. (2006). Enhanced magnetoelectric effect in three-phase MnZnFe2O4/Tb1-xDyxFe2-y/Pb(Zr,Ti)O-3 composites. Journal of Applied Physics, 100(12). doi: 10.1063/1.2402968