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Oxygen K-edge XANES investigation of NicMg1-cO solid solutions
Chen DL(陈栋梁); Zhong J(钟俊); Wu X(巫翔); Wu ZY(吴自玉); Chen, DL; Zhong, J; Wu, X; Wu, ZY; Mironova-Ulmane, N; Kuzmin, A; Marcelli, A
2008
发表期刊SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷号70期号:2页码:458-461
通讯作者[Chen, Dongliang ; Zhong, Jun ; Wu, Xiang ; Wu, Ziyu] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Mironova-Ulmane, Nina ; Kuzmin, Alexei] Latvian State Univ, Inst Solid State Phys, LV-1063 Riga, Latvia ; [Marcelli, Augosto] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
摘要A series of NicMg1-cO solid solutions are characterized by means of synchrotron radiation X-ray diffraction and X-ray absorption near-edge-structure spectroscopy at oxygen K-edge (532 eV). A dramatic drop of the pre-edge peak intensity is observed in the NicMg1-cO system upon dilution. It can be attributed to a decrease of 3d(8)(Ni2+)-2p(O2-) mixing upon dilution with magnesium ions due to a decrease of the number of 3d vacancies as nickel ion is replaced by magnesium ion. Similarly, the decrease of the number of 4s and 4p vacancies also leads to a decrease of 4s4p(Ni2+)-2p(O2-) hybridization, and hence a drop of intensities of features B and C. The features E and F are more sensitive to the increase of the degree of disorder upon dilution than feature D, revealing that the latter is mainly dependent by the medium-range order. (C) 2008 Elsevier B.V. All rights reserved.
文章类型Article
关键词XANES NicMg1-cO oxygen K-edge hybridization
学科领域Spectroscopy
DOI10.1016/j.saa.2007.11.032
研究领域[WOS]Spectroscopy
URL查看原文
语种英语
WOS类目Spectroscopy
WOS记录号WOS:000257519600036
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被引频次:2[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/311005/237565
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
推荐引用方式
GB/T 7714
Chen DL,Zhong J,Wu X,et al. Oxygen K-edge XANES investigation of NicMg1-cO solid solutions[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2008,70(2):458-461.
APA 陈栋梁.,钟俊.,巫翔.,吴自玉.,Chen, DL.,...&Marcelli, A.(2008).Oxygen K-edge XANES investigation of NicMg1-cO solid solutions.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,70(2),458-461.
MLA 陈栋梁,et al."Oxygen K-edge XANES investigation of NicMg1-cO solid solutions".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 70.2(2008):458-461.
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