Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films

doi:10.1063/1.3075844

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	Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films
	Yan, WS; Sun, ZH; Pan, ZY; Liu, QH; Yao, T; Wu, ZY; Song, C; Zeng, F; Xie, YN; Hu, TD; Wei, SQ; 谢亚宁,胡天斗
	2009
发表期刊	APPLIED PHYSICS LETTERS (IF:3.411[JCR-2016],3.341[5-Year])
卷号	94 期号:4 页码:42508
通讯作者	[Yan, Wensheng ; Sun, Zhihu ; Pan, Zhiyun ; Liu, Qinghua ; Yao, Tao ; Wu, Ziyu ; Wei, Shiqiang] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China ; [Song, Cheng ; Zeng, Fei] Tsinghua Univ, Adv Mat Lab, Dept Mat Sci & Engn, Beijing 100084, Peoples R China ; [Xie, Yaning ; Hu, Tiandou] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China
文章类型	Article
摘要	The x-ray absorption near edge structure spectroscopy and first-principles calculations were combined to study the local and electronic structures of rutile Co:TiO2 thin film with room-temperature ferromagnetism. It was revealed that the Co(Ti)2+ substituting the Ti site forms Co(Ti)p 2+-V-O complex with the O vacancy generated in the annealing process. The O vacancy induces a spin-split donor impurity band with a t(2g) character within the gap region. We proposed that the strong exchange interaction between the localized carriers captured by O vacancy and the substitutional Co ions leads to the ferromagnetism of the Co:TiO2 thin film.
关键词	ab initio calculations annealing cobalt electronic structure ferromagnetic materials impurity states magnetic thin films semimagnetic semiconductors titanium compounds XANES
学科领域	Physics
DOI	10.1063/1.3075844
URL	查看原文
收录类别	ADS
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000262971800068
ADS Bibcode	2009ApPhL..94d2508Y
ADS URL	https://ui.adsabs.harvard.edu/abs/2009ApPhL..94d2508Y
ADS引文	https://ui.adsabs.harvard.edu/abs/2009ApPhL..94d2508Y/citations
引用统计	正在获取... 被引频次：38 [ADS]
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/240606
专题	计算中心实验物理中心多学科研究中心
作者单位	中国科学院高能物理研究所
第一作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Yan, WS,Sun, ZH,Pan, ZY,et al. Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films[J]. APPLIED PHYSICS LETTERS,2009,94(4):42508.
APA	Yan, WS.,Sun, ZH.,Pan, ZY.,Liu, QH.,Yao, T.,...&谢亚宁,胡天斗.(2009).Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films.APPLIED PHYSICS LETTERS,94(4),42508.
MLA	Yan, WS,et al."Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films".APPLIED PHYSICS LETTERS 94.4(2009):42508.