Structure and Magnetic Properties of Ni-doped ZnO Powder

被引：5
|
作者：
Gao Fang [1 ]
Zhao Jun [1 ]
Wu Kangbing [2 ]
机构：
[1] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Wuhan 430074, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2010年 / 25卷 / 05期
关键词：
ferromagnetism; diluted magnetic semiconductor; Ni-doped ZnO; coprecipitation; solid state reaction; FERROMAGNETISM;
D O I：
10.1007/s11595-010-0089-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ni-doped ZnO nanopowder (Zn0.98Ni0.2O) was synthesized by improved coprecipitation method. The average particle size of the powder was estimated to be 50 nm. The powder was then processed by thermal treatment. Samples were annealed at 1 073, 1 273, and 1 473 K, respectively. The solubility of NiO in ZnO and the lattice parameters of ZnO both increased with the temperature. The magnetic property of the doped samples was examined, and hysteresis loops were got. The results showed all the samples were ferromagnetic, while powder processed at 1 273 K for 4 h got a highest saturation magnetization (M-s) of 0.0457 emu/g. Also, magnetic properties were related to the grain size of the powder.
引用
收藏
页码：770 / 773
页数：4
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