A threshold of Vo+/Vo++ to room temperature ferromagnetism of hydrogenated Mn doped ZnO nanoparticles

被引：28
作者：
Yuan, K. [1 ]
Yu, Q. X. [1 ]
Gao, Q. Q. [1 ]
Wang, J. [1 ]
Zhang, X. T. [1 ]
机构：
[1] Univ Sci & Technol China, Dept Phys, Hefei Natl Lab Phys Sci Microscale, Hefei 23002, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 08期
关键词：
ZnO; Nanoparticle; Ferromagnetism; Photoluminescence; Oxygen vacancy; Gaussian analysis; THIN-FILMS; PHOTOLUMINESCENCE; NANOTUBES;
D O I：
10.1016/j.apsusc.2011.08.080
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：
Hydrogenated Mn doped Zn1-xMnxO (x = 0.03, 0.04, 0.08) nanoparticles were prepared by co-precipitation method. With the increase of Mn ions concentration, the magnetization of the hydrogenated Zn1-xMnxO increased. Photoluminescence spectra of samples annealed in Ar and H-2 respectively were performed and the visible bands were fitted with Gaussian analysis. It is concluded that the sharp magnetization enhancement could be attributed to the long-rang interaction between bound-magnetic-polarons led by the singly charged oxygen vacancy (Vo(+)). (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：3350 / 3353
页数：4
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