Local electronic structure analysis of Zn-doped BiFeO3 powders by X-ray absorption fine structure spectroscopy

被引：25

作者：

Gholam, Turghunjan ^{[1
]}

Ablat, Abduleziz ^{[1
]}

Mamat, Mamatrishat ^{[1
]}

Wu, Rong ^{[1
]}

Aimidula, Aimierding ^{[1
]}

Bake, Muhammad Ali ^{[1
]}

Zheng, Lirong ^{[2
]}

Wang, Jiaou ^{[2
]}

Qian, Haijie ^{[2
]}

Wu, Rui ^{[2
]}

Ibrahim, Kurash ^{[2
]}

机构：

[1] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China

[2] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 710卷

基金：

中国国家自然科学基金;

关键词：

Hydrothermal method; Electronic structure; X-ray absorption fine structure; BiFeO3; MAGNETIC-PROPERTIES; HYDROTHERMAL SYNTHESIS; BISMUTH FERRITES; PHASE; NANOPARTICLES; MORPHOLOGY; EDGE; GD;

D O I：

10.1016/j.jallcom.2017.03.242

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：843 / 849

页数：7

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