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Magnetoelectric effect of Ni0.8Zn0.2Fe2O4/Sr0.5Ba0.5Nb2O6 composites
被引:57
|作者:
Li, Y. J.
[1
]
Chen, X. M.
[1
]
Lin, Y. Q.
[1
]
Tang, Y. H.
[1
]
机构:
[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China
基金:
中国国家自然科学基金;
关键词:
composites;
dielectric properties;
electrical properties;
magnetoelectric effect;
sintering;
(Ni;
Zn)Fe2O4;
(Sr;
Ba)Nb2O6;
D O I:
10.1016/j.jeurceramsoc.2005.06.028
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Novel magnetoelectric composites were prepared by incorporating the dispersed Ni0.8Zn0.2Fe2O4 ferromagnetic particles into Sr0.5Ba0.5Nb2O6 relaxor ferroelectric matrix. Dense composite ceramics were obtained with the co-presence of Sr0.5Ba0.5Nb2O6 and Ni0.8Zn0.2Fe2O4, and they could be electrically and magnetically poled to exhibit a significant magnetoelectric effect. A maximum magnetoelectric voltage coefficient of 26.6 mV/cm/Oe was observed from the composites with 70 mol% Sr0.5Ba0.5Nb2O6, which was much greater than that of magnetoelectric compounds and solid solutions. It is convenient to use the Pb-free (Sr,Ba)Nb2O6 relaxor as the matrix for ferromagnetic/ferroelectric composites in the future development of magnetoelectric materials. (c) 2005 Elsevier Ltd. All rights reserved.
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页码:2839 / 2844
页数:6
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