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Title: Giant magnetoelectric effect of a hybrid of magnetostrictive and piezoelectric composites
Authors: Wan, J. G.
Liu, J.-M.
Chan, Helen L. W.
Choy, Chung-loong
Wang, G. H.
Nan, C. W.
Subjects: Terbium alloys
Dysprosium alloys
Iron alloys
Composite materials
Piezoelectric materials
Eddy current losses
Lead compounds
Issue Date: 15-Jun-2003
Publisher: American Institute of Physics
Source: Journal of applied physics, 15 June 2003, v. 93, no. 12, p. 9916-9919.
Abstract: A magnetoelectric (ME) hybrid structure is constructed by an efficient coupling between magnetostrictive Terfenol-D (Tb[sub 0.27-0.30]Dy[sub 0.73-0.70]Fe[sub 1.90-1.95])/epoxy and piezoelectric lead- zirconate-titanate [Pb(Zr[sub 0.52]Ti[sub 0.48])O₃]/epoxy composites. Significant ME effect produced by the piezoelectric k₃₁ coupling with the longitudinal vibration of the magnetostrictive component over a wide range of frequency is observed. It is revealed that the ME effect can be enhanced by applying an optimized magnetic bias. A magnetoelectric voltage coefficient as high as 8700 mV/cm Oe is recorded at the resonance frequency of 59.2 kHz for the structure with an optimized magnetic bias of 0.7 kOe. Our measurement confirms that the eddy current loss remains negligibly small at an operating frequency as high as ~200 kHz, predicting very promising applications of the present ME structure.
Rights: © 2003 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J.G. Wan et al., J. Appl. Phys. 93, 9916 (2003) and may be found at
Type: Journal/Magazine Article
ISSN: 0021-8979
Appears in Collections:MRC Journal/Magazine Articles
AP Journal/Magazine Articles

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