Eddy current induced magnetoelectricity in a piezoelectric unimorph bender

被引：19

作者：

Guiffard, B. ^{[1
]}

Guyomar, D. ^{[1
]}

Garbuio, L. ^{[1
]}

Belouadah, R. ^{[1
,2
]}

Zhang, J. ^{[1
,3
]}

Cottinet, P. J. ^{[1
]}

机构：

[1] LGEF INSA Lyon, Lab Genie Elect & Ferroelect, F-69621 Villeurbanne, France

[2] Ecole Normale Super, Lab Systemes Integres Base Capteurs, Algiers, Algeria

[3] NE Dianli Univ, Sch Civil & Architectural Engn, Jilin 132012, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 04期

关键词：

bending; eddy currents; lead compounds; magnetic flux; magnetoelectric effects; piezoceramics;

D O I：

10.1063/1.3298551

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Here, we report on a magnetoelectric (ME) coupling in a simple piezoelectric unimorph bender induced by the eddy currents within the silver electrodes of the piezoelectric ceramic Pb(Zr,Ti)O-3 (PZT) subjected to ac magnetic flux. Eddy currents and the applied magnetic field generate Lorentz forces in the metal electrode acting on the PZT. A magnetically induced piezoelectric current linear versus dc magnetic biases is obtained at the ceramic electrodes. ME coupling is finally achieved with only one piezoelectric bender: (i) no magnetic phase is required, (ii) no ac current supply is necessary, eddy currents in electrodes are sufficient to generate Lorentz forces.

引用

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