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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
研究领域[WOS]Instruments & Instrumentation ; Optics ; Physics ; Instruments & Instrumentation ; Optics ; Physics
DOI10.1107/S0909049510020303
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语种英语
研究领域[WOS]Instruments & Instrumentation ; Optics ; Physics ; Instruments & Instrumentation ; Optics ; Physics
WOS类目Instruments & Instrumentation ; Optics ; Physics, Applied
WOS记录号WOS:000282083300004
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被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238081
专题多学科研究中心
作者单位中国科学院高能物理研究所
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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.
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