Colossal magnetodielectric effect caused by magnetoelectric effect under low magnetic field

Bulletin of Materials Science

关键词: Composite materials;    electrical properties;    magnetodielectric effect;    magnetoelectric effect.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

CC BY