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Direct and converse magnetoelectric effect at resonant frequency in laminar piezoelectric-magnetostrictive composite.

By C. Popov, Harrison Hoon Seok Chang, P. M. Record, E. Abraham, Roger W. Whatmore and Zhaorong Huang

Abstract

Laminar piezoelectric-magnetostrictive composites using piezoelectric lead zirconate titanate ceramics and the giant magnetostrictive rare-earth-iron alloy Terfenol-D were prepared by epoxy bonding. The direct and converse magnetoelectric (ME) effects at and off the mechanical resonant frequency were characterized and compared to the theoretical modelling. The mechanical resonant frequency of the composites depended on the sample orientation and the magnetic DC bias field. In the longitudinal configuration, the resonant frequency shifted down monotonically with the increasing bias field. When the sample was in the transverse configuration, the resonant frequency decreased with the increasing field at first. However, at higher bias, it shifted up with the increasing bias. A phenomenological model based on the à  E effect of magnetostrictive materials is proposed to explain the observed phenomen

Topics: Magnetoelectric effect, Piezoelectric, Magnetostrictive, PZT, ΔE effect, Orientation dependence
Publisher: Springer Science Business Media
Year: 2008
DOI identifier: 10.1007/s10832-007-9184-5
OAI identifier: oai:dspace.lib.cranfield.ac.uk:1826/2449
Provided by: Cranfield CERES
Journal:

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Citations

  1. (1960). Electrodynamics of Continous doi
  2. The magnetostriction (λ//) data as supplied by the manufacturer as a function of magnetic field was approximated by a polynomial fitting, then its derivation which should equal the q33was obtained. q31 was obtained by assuming q31= -q33/2.

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