期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 710, 期 -, 页码 843-849出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.03.242
关键词
Hydrothermal method; Electronic structure; X-ray absorption fine structure; BiFeO3
资金
- National Natural Science Foundation of China [61604126, 61464010, 61366001, 11664039]
- University Research Project of Xinjiang Uyghur Autonomous Region [XJEDU2014I002]
- Technological Innovation Youth Training Project of Xinjiang Uyghur Autonomous Region of China [QN2015BS005, QN2015YX004]
- NSFC [11575150]
Multiferroic BiFe1-xZnxO3 (0 <= x <= 0.1) powders were synthesized by a hydrothermal method. Structural studies using X-ray diffraction revealed that all samples possessed a rhombohedral R3c perovskite structure. Scanning electron microscopy showed that the average grain size decreased slightly with increasing Zn concentration. Fe K-edge and Bi L-3-edge X-ray absorption fine structure spectra indicated that both the Fe and Bi ions had a +3 valence state in all samples. The local electronic structure of the center atoms was affected by Zn doping. Fourier transform infrared analysis revealed the characteristic vibrations of the obtained BiFe1-xZnxO3 (0 <= x <= 0.1) samples. Magnetic hysteresis loop measurements indicated a maximum remnant magnetization (Mr) for the x = 0.025 sample, which was primarily a result of the Fe3+-O-Zn2+ anti-ferromagnetic exchange interaction. (C) 2017 Elsevier B.V. All rights reserved.
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