Frequency dependence of the magnetoelectric effect in a magnetostrictive-piezoelectric heterostructure

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...

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Bibliographic Details
Published inChinese physics B Vol. 22; no. 7; pp. 507 - 510
Main Author 郁国良 李元勋 曾玉琴 李颉 左林 李强 张怀武
Format Journal Article
LanguageEnglish
Published 01.07.2013
Subjects
Coefficients
Coupling coefficients
Heterostructures
Magnetostriction
Mathematical analysis
Mathematical models
Miniature
Phases
Piezoelectricity
压电相
异质结构
机电耦合
电气机械
磁电效应
磁致伸缩
边界条件
频率依赖性
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/22/7/077504

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Summary: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.
Bibliography:Yu Guo-Liang, Li Yuan-Xun, Zeng Yu-Qin, Li Jie, Zuo Lin, Li Qiang,Zhang Huai-Wu State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
magnetoelectric effect;magnetostrictive-piezoelectric heterostructure;electromechanical resonance
11-5639/O4
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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ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/22/7/077504