Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 26, Issue 11, Pages 8840-8847Publisher
SPRINGER
DOI: 10.1007/s10854-015-3564-4
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Funding
- projects of Education Department of Sichuan Province [15ZA0037, 15ZB0032]
- Science and Technology Bureau of Sichuan Province [2014JY0040]
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Multiferroic ceramics of 0.75Bi(1-x) Eu (x) FeO3-0.25BaTiO(3) + 1 mol% MnO2 were synthesized by a conventional solid state reaction method and the effects of Eu doping on microstructure, ferroelectric, ferromagnetic and piezoelectric properties of the ceramics were investigated. All the ceramics exhibit a pure perovskite structure without any secondary phases. After the addition of Eu3+ ions, the crystal structure of the ceramics is transformed from rhombohedral to tetragonal phase at x = 0.025. The ferroelectricity and ferromagnetism of the ceramics are improved. For the ceramic with x = 0.025, the optimum remanent polarization of 18.3 mu C/cm(2) and good piezoelectricity of 82 pC/N are obtained. The saturated magnetization M (s) and remanent magnetism M (r) of the ceramics are improved by 165 and 141 % with x increasing from 0 to 0.175, respectively.
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