Defect types and room temperature ferromagnetism in N-doped rutile TiO2 single crystals

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	Defect types and room temperature ferromagnetism in N-doped rutile TiO2 single crystals
	Qin XB(秦秀波); Qin, XB; Li, DX; Li, RQ; Zhang, P; Li, YX; Wang, BY; 张鹏(正); Wang BY(王宝义)
刊名	CHINESE PHYSICS B
	2014
卷号	23 期号:6 页码:67502
关键词	N doping titanium vacancies replacement of O with N atoms ferromagnetism
英文摘要	The magnetic properties and defect types of virgin and N-doped TiO2 single crystals are probed by superconducting quantum interference device (SQUID), X-ray photoelectron spectroscopy (XPS), and positron annihilation analysis (PAS). Upon N doping, a twofold enhancement of the saturation magnetization is observed. Apparently, this enhancement is not related to an increase in oxygen vacancy, rather to unpaired 3d electrons in Ti3+, arising from titanium vacancies and the replacement of O with N atoms in the rutile structure. The production of titanium vacancies can enhance the room temperature ferromagnetism (RTFM), and substitution of O with N is the onset of ferromagnetism by inducing relatively strong ferromagnetic ordering.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000338668200086
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224899]
专题	高能物理研究所_核技术应用研究中心
推荐引用方式 GB/T 7714	Qin XB,Qin, XB,Li, DX,et al. Defect types and room temperature ferromagnetism in N-doped rutile TiO2 single crystals[J]. CHINESE PHYSICS B,2014,23(6):67502.
APA	秦秀波.,Qin, XB.,Li, DX.,Li, RQ.,Zhang, P.,...&王宝义.(2014).Defect types and room temperature ferromagnetism in N-doped rutile TiO2 single crystals.CHINESE PHYSICS B,23(6),67502.
MLA	秦秀波,et al."Defect types and room temperature ferromagnetism in N-doped rutile TiO2 single crystals".CHINESE PHYSICS B 23.6(2014):67502.