Investigation of annealing-induced oxygen vacancies in the Co-doped ZnO system by Co K-edge XANES spectroscopy

doi:10.1107/S0909049510020303

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	Investigation of annealing-induced oxygen vacancies in the Co-doped ZnO system by Co K-edge XANES spectroscopy
	Zhang, S; Zhang LJ(张林娟); Li HM(李海铭); Li J(李炯); Chu WS(储旺盛); Wu ZY(吴自玉); Zhang, LJ; Li, HM; Li, JO; Jiang, Z; Chu, WS; Huang, YY; Wang, JQ; Wu, ZY
	2010
发表期刊	JOURNAL OF SYNCHROTRON RADIATION
卷号	17 期号:5 页码:600-605
通讯作者	[Zhang, Shuo ; Li, Jiong ; Jiang, Zheng ; Huang, Yuying ; Wang, Jianqiang] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China ; [Zhang, Linjuan ; Li, Haiming ; Li, Jiong ; Chu, Wangsheng ; Wu, Ziyu] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Shanghai 100049, Peoples R China ; [Wu, Ziyu] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China
文章类型	Article
摘要	To clarify the mechanism of the observed room-temperature ferromagnetism (RTF), many studies have been focused on dilute magnetic semiconductor systems Several investigations have demonstrated that oxygen vacancies play a significant role in mediating the RTF behavior so that much effort has been devoted to confirm their presence. In this investigation, X-ray absorption spectroscopy was combined with ab mitro calculations of the electronic structure of Co and Zn in the Zn(0.9)Co(1)O 10 system before and after annealing, which has been recognized as an effective method of originating oxygen vacancies A feature at about 20 eV after the rising edge of the Co K-edge XANES that disappears after annealing has been associated with the presence of an oxygen vacancy located in the second shell surrounding the Co atom Moreover, Zn Kedge XANES spectra point out that this oxygen vacancy affects the electronic structure near the Fermi level, in agreement with density functional theory calculations.
关键词	DMS oxygen vacancy XANES
学科领域	Instruments & Instrumentation; Optics; Physics
DOI	10.1107/S0909049510020303
URL	查看原文
收录类别	SCI ; ADS
语种	英语
WOS研究方向	Instruments & Instrumentation ; Optics ; Physics
WOS类目	Instruments & Instrumentation ; Optics ; Physics, Applied
WOS记录号	WOS:000282083300004
ADS Bibcode	2010JSynR..17..600Z
ADS URL	https://ui.adsabs.harvard.edu/abs/2010JSynR..17..600Z
ADS引文	https://ui.adsabs.harvard.edu/abs/2010JSynR..17..600Z/citations
引用统计	正在获取... 被引频次：9 [ADS]
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/238081
专题	多学科研究中心加速器中心
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	Zhang, S,Zhang LJ,Li HM,et al. Investigation of annealing-induced oxygen vacancies in the Co-doped ZnO system by Co K-edge XANES spectroscopy[J]. JOURNAL OF SYNCHROTRON RADIATION,2010,17(5):600-605.
APA	Zhang, S.,张林娟.,李海铭.,李炯.,储旺盛.,...&Wu, ZY.(2010).Investigation of annealing-induced oxygen vacancies in the Co-doped ZnO system by Co K-edge XANES spectroscopy.JOURNAL OF SYNCHROTRON RADIATION,17(5),600-605.
MLA	Zhang, S,et al."Investigation of annealing-induced oxygen vacancies in the Co-doped ZnO system by Co K-edge XANES spectroscopy".JOURNAL OF SYNCHROTRON RADIATION 17.5(2010):600-605.