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Frequency dependence of magnetoelectric effect in magnetostrictive-piezoelectric heterostructure |
Yu Guo-Liang (郁国良), Li Yuan-Xun (李元勋), Zeng Yu-Qin (曾玉琴), Li Jie (李颉), Zuo Lin (左林), Li Qiang (李强), Zhang Huai-Wu (张怀武) |
State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China |
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Abstract The frequency dependence of the magnetoelectric effect in a magnetostrictive-piezoelectric heterostructure is theoretically studied by solving combined magnetic, elastic, and electric equations with boundary conditions. Both the mechanical coupling coefficient and the losses of the magnetostrictive and piezoelectric phases are taken into account. The numerical result indicates that the magnetoelectric coefficient and the resonance frequency are determined by the mechanical coupling coefficient, losses, and geometric parameters. Moreover, at the electromechanical resonance frequency, the module of the magnetoelectric coefficient is mostly contributed by the imaginary part. The relationship between the real and the imaginary parts of the magnetoelectric coefficient fit well to the Cole-Cole circle. The magnetostrictive-piezoelectric heterostructure has a great potential application as miniature and no-secondary coil solid-state transformers.
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Received: 22 September 2012
Revised: 29 January 2013
Accepted manuscript online:
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PACS:
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75.80.+q
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(Magnetomechanical effects, magnetostriction)
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75.85.+t
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(Magnetoelectric effects, multiferroics)
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Corresponding Authors:
Yu Guo-Liang
E-mail: bairentangygl@126.com
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Cite this article:
Yu Guo-Liang (郁国良), Li Yuan-Xun (李元勋), Zeng Yu-Qin (曾玉琴), Li Jie (李颉), Zuo Lin (左林), Li Qiang (李强), Zhang Huai-Wu (张怀武) Frequency dependence of magnetoelectric effect in magnetostrictive-piezoelectric heterostructure 2013 Chin. Phys. B 22 077504
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