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Magnetodielectric effect and electric-induced magnetic permeability in magnetoelectric laminate composite under low inspiring signal
被引:21
|作者:
Zhou, Jian-Ping
[1
]
Zhang, Yu-Xiang
[1
]
Zhang, Guang-Bin
[1
]
Liu, Peng
[1
]
机构:
[1] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710062, Peoples R China
基金:
中国国家自然科学基金;
关键词:
D O I:
10.1063/1.4780828
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
A theory based on equivalent circuit was proposed to demonstrate that magnetodielectric (MDE) effect and electric-induced magnetic permeability (EIMP) exist in the magnetoelectric composite. Both MDE and EIMP are sensitive to the amplitude of inspiring signal. They were researched in a simple Pb(Zr,Ti)O-3/Terfenol-D laminate composite experimentally. A large MDE coefficient over 85% was found near the resonance frequency under a low magnetic field of 40 Oe. The EIMP was also observed in the composite. They are mainly originated from the magnetoelectric coupling between the piezoelectric and magnetostrictive components. These results are significant in the device applications of modulating dielectric constant and magnetic permeability at room temperature. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4780828]
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