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

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    2006_Enhanced_magnetoelectric_effect.pdf (557.1Kb)
    Downloads: 436
    Date
    2006-12-15
    Author
    Dong, Shuxiang
    Zhai, Junyi
    Li, Jiefang
    Viehland, Dwight D.
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    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.
    URI
    http://hdl.handle.net/10919/52433
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    • Scholarly Works, Materials Science and Engineering (MSE) [398]

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