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Composite materials; electrical properties; magnetodielectric effect; magnetoelectric effect.

The colossal magnetodielectric effect is reported in Pb(Zr,Ti)O₃/Terfenol-D laminate composite under low magnetic field. When the composite is placed in an external a.c. magnetic field, magnetoelectric effect is produced, as a result, the dielectric properties of the Pb(Zr,Ti)O₃ is changed, i.e. magnetodielectric effect. Both the amplitude and resonance frequency change with the external magnetic field. The colossal magnetodielectric coefficient of 5 × 10⁴%at low magnetic field of 20 Oe is achieved near the electromechanical resonance frequency.

Qian Liu¹ Xiao-Bing Bian¹ Jian-Ping Zhou¹ Peng Liu¹

1. School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, P.R. China

Published

April 2011

Manuscript received

30 October 2008

Manuscript revised

24 January 2011