d0 ferromagnetism in undoped sphalerite ZnS nanoparticles

被引：78
|
作者：
Gao, Daqiang [1 ]
Yang, Guijin [1 ]
Zhang, Jing [1 ]
Zhu, Zhonghua [1 ]
Si, Mingsu [1 ]
Xue, Desheng [1 ]
机构：
[1] Lanzhou Univ, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 05期
关键词：
D O I：
10.1063/1.3622303
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the sulfur vacancies-related d(0) ferromagnetism in undoped sphalerite ZnS nanoparticles. Systematically tune of sulfur deficiency in ZnS nanoparticles was done by selecting different synthesized temperatures and varying the ratio of hydrogen and argon in post-annealing processes. Our study suggests that such sulfur vacancies can induce the room temperature ferromagnetism. Importantly, the ferromagnetism can be modulated by changing the concentration of sulfur vacancies in the samples. This finding should be the focus of future electronic and spintronic devices. (C) 2011 American Institute of Physics. [doi:10.1063/1.3622303]
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页数：3
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