Oxygen K-edge XANES investigation of NicMg1-cO solid solutions

	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
刊名	SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
	2008
卷号	70 期号:2 页码:458-461
关键词	XANES NicMg1-cO oxygen K-edge hybridization
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
英文摘要	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.
学科主题	Spectroscopy
类目[WOS]	Spectroscopy
研究领域[WOS]	Spectroscopy
原文出处	SCI
语种	英语
WOS记录号	WOS:000257519600036
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/237565]
专题	高能物理研究所_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.