Structural, Magnetic and Optical Properties of BiFe1-xNbxO3

被引：11
|
作者：
Xian, Hui-min [1 ]
Du, Yi-quan [1 ]
Zhang, Jiang [1 ]
Chen, Xi [1 ]
机构：
[1] South China Univ Technol, Dept Phys, Guangzhou 510006, Guangdong, Peoples R China
来源：
CHINESE JOURNAL OF CHEMICAL PHYSICS | 2016年 / 29卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Bismuth ferrite; Crystal structure; Magnetic property; Band gap; BIFEO3; TRANSFORMATION; TRANSITION; SIZE;
D O I：
10.1063/1674-0068/29/cjcp1603061
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Nb doped multiferroic BiFe1-xNbxO3 (0<x<0.05) polycrystalline powders have been synthesized by using a sol-gel method. The effect of Nb dopant on the structural, magnetic and optical properties is investigated. According to the X-ray diffraction data and the result of Rietveld refinement, all the samples maintain the R3c phase, while the lattice parameters a, c, the cell volume V and the Fe-O-Fe bond angle change. The remnant magnetization enhances by appropriate Nb doping due to the decreasing of the grain size. Meanwhile, Nb dopant leads to the narrowing of the band gap of BiFe1-xNbxO3 samples.
引用
收藏
页码：578 / 584
页数：7
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