期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 401, 期 -, 页码 1046-1053出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2015.11.008
关键词
Magnetoelectric effect; Self-bias; Temperature; Pre-stress
资金
- National Natural Science Foundation of China [11072093, 11372120, 11421062]
- Grant from the PhD Program Foundation of the Ministry of Education of China [20110211110023]
In this paper, a mechanical-thermo-magneto model for self-biased magnetoelectric effect in laminated composite with high-permeability materials is established. Considering the effects of demagnetization, pre-stress and temperature, the effective magnetic field and piezomagnetic coefficient of magnetostrictive layers are calculated. Then, the effects of temperature and pre-stress on ME effect are investigated. Finally, the combined effect of temperature and pre-stress on zero-bias ME voltage coefficient is discussed in detail to achieve a good ME conversion efficiency. The numerical results show that due to the occurrence of the additional magnetic field from high-permeability materials, available self-biased ME effect can be obtained in the proposed model. The operating temperature affects not only the peak value but also the initial value of ME voltage coefficient. Also, pre-stress can change the temperature effect on the zero-bias ME voltage coefficient obviously. (C) 2015 Elsevier B.V. All rights reserved.
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