Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/516
Title: High magnetoelectric effect in laminated composites of giant magnetostrictive alloy and lead-free piezoelectric ceramic
Authors: Jia, Yanmin
Or, Derek Siu-wing
Wang, Jie
Chan, Helen L. W.
Zhao, Xiangyong
Luo, Haosu
Subjects: Bismuth compounds
Sodium compounds
Potassium compounds
Barium compounds
Terbium alloys
Dysprosium alloys
Iron alloys
Piezoceramics
Laminates
Magnetoelectric effects
Issue Date: 17-May-2007
Publisher: American Institute of Physics
Source: Journal of applied physics, 17 May 2007, v. 101, no. 10, 104103, p. 1-5.
Abstract: Magnetoelectric (ME) laminated composites with all phases environmentally friendly were prepared by sandwiching one layer of thickness-polarized (Bi[sub ½]Na[sub ½]TiO₃-(Bi[sub ½]K[sub ½]TiO₃-BaTiO₃ lead-free piezoelectric ceramic disk between two layers of thickness-magnetized Tb[sub 0.3]Dy[sub 0.7]Fe[sub 1.92] giant magnetostrictive alloy disk along the thickness direction. The composites exhibited the maximum ME voltage coefficient of 40.7 mV/Oe with a flat response in the measured frequency range of 0.1−20 kHz under a dc magnetic bias of 5 kOe. The induced ME voltage showed an extremely linear relationship to the applied ac magnetic field with amplitude varying from 3 x 10[sup −5] to 10 Oe over a broad range of dc magnetic bias of 0−5.5 kOe. The high ME effect was analyzed and found to be comparable to most major lead-based ME composites. The present study opens up possibilities for developing green ME devices.
Rights: © 2007 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 Y. Jia et al. J. Appl. Phys. 101, 104103 (2007) and may be found at http://link.aip.org/link/?jap/101/104103
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/516
ISSN: 0021-8979
Appears in Collections:AP Journal/Magazine Articles

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