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Applied Physics A

, Volume 86, Issue 4, pp 525–528 | Cite as

Magnetoelectric effect in composites of magnet, metal-cap, and piezoceramic

  • Y.M. JiaEmail author
  • S.W. Or
  • K.H. Lam
  • H.L.W. Chan
  • Y.X. Tang
  • X.Y. Zhao
  • H.S. Luo
Article

Abstract

We report on the magnetoelectric (ME) effect in three-phase magnet-metal-cap-piezoceramic composites of a thickness-polarized Pb(Zr,Ti)O3 disk bonded between two truncated conical brass caps and two thickness-magnetized NdFeB magnets along the thickness direction. The effect originated from the product of the magnetic attractive–repellent effect in the magnets and the amplified piezoelectric effect in the cap-disk assembly. The composites exhibited a ME voltage coefficient αV of ∼2.6 mV/Oe in the non-resonance frequency range of 0.1–10 kHz with good voltage-field linearity in the field range of 10-3–10 Oe, besides an enhanced αV of 167.4 mV/Oe at a resonance frequency of 14.4 kHz. Compared to conventional two-phase and three-phase magnetostrictive material-contained ME composites, these composites possessed two distinct benefits of higher property-tailorable flexibility and requiring no external dc bias magnetic field to enable an obvious αV.

Keywords

Repellent Effect NdFeB Magnet Piezoelectric Voltage Disk Assembly Current Composite 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Y.M. Jia
    • 1
    • 2
    • 3
    Email author
  • S.W. Or
    • 2
  • K.H. Lam
    • 2
  • H.L.W. Chan
    • 2
  • Y.X. Tang
    • 1
  • X.Y. Zhao
    • 1
  • H.S. Luo
    • 1
  1. 1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of CeramicsChinese Academy of SciencesShanghaiP.R. China
  2. 2.Department of Applied Physicsthe Hong Kong Polytechnic UniversityKowloonP.R. China
  3. 3.Graduate School of the Chinese Academy of SciencesBeijingP.R. China

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