Valence State-Dependent Ferromagnetism in Mn-Doped NiO Thin Films (vol 24, pg 353, 2012)

被引：0
|
作者：
Yan, Wensheng
Sun, Zhihu
Li, Zhongrui
Liu, Qinghua
Yao, Tao
Pan, Zhiyun
Wang, Chao
Hu, Fengchun
Jiang, Yong
Qi, Zeming
Zeng, Fei
Wei, Shiqiang
机构：
[1] National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei
[2] Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University
来源：
ADVANCED MATERIALS | 2012年 / 24卷 / 03期
基金：
中国国家自然科学基金;
关键词：
ferromagnetism; Mn-doped NiO; XAFS;
D O I：
10.1002/adma.201290008
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Manipulating the ferromagnetism of diluted magnetic semiconductors by tuning the valence state of doped ions is found to be achievable in Mn-doped NiO. First-principles calculations predict that the interactions between substitutional Mn3+ ions in NiO are ferromagnetic, while the Mn2+-Mn2+ interactions are antiferromagnetic. This scenario is experimentally supported by a great enhancement of saturation magnetization with increased Mn3+/Mn2+ ratio in Mn-doped and (Mn, Li)-codoped NiO.
引用
收藏
页码：329 / 329
页数：1
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