Magnetic and electrical properties of Bi0.8Ca0.2Fe1−xMnxO3 (0 ≤ x ≤ 0.5)
Magnetic and electrical properties of Bi0.8Ca0.2Fe1−xMnxO3 (0 ≤ x ≤ 0.5)
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DOI：
10.1016/j.jallcom.2009.08.099
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发表时间：
2009-11
影响因子：
6.2
通讯作者：
L. Yin;Y. Sun;F. Zhang;W. B. Wu;Xuan Luo;X. B. Zhu;Z. R. Yang;J. Dai;W. Song;R. Zhang
中科院分区：
文献类型：
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作者：
L. Yin;Y. Sun;F. Zhang;W. B. Wu;Xuan Luo;X. B. Zhu;Z. R. Yang;J. Dai;W. Song;R. Zhang
Mn-substituted Bi0.8Ca0.2FeO3ceramics Bi0.8Ca0.2Fe1−xMnxO3(0≤x≤0.5) were synthesized by a solid-state reaction method. Powder X-ray diffraction investigations performed at room temperature show that the crystal structure is rhombohedral for x≤0.1 and orthorhombic for 0.2≤x≤0.5. Compared to the undoped Bi0.8Ca0.2FeO3compound, enhanced magnetization and electric polarization were observed in the samples with x≤0.1. A further increase in the magnetization with increasing x took place in the samples with 0.2≤x≤0.5. All the Mn-substituted samples studied are basically antiferromagnetic accompanied by the appearance of weak ferromagnetism, which is similar to the BiFeO3compound. The conductivity of the samples with x≥0.3, measured between 140 and 380K, is of the semiconducting type.
