Core-level X-ray photoelectron emission spectra of Sr14-xCaxCu24O41

IMR OpenIR

	Core-level X-ray photoelectron emission spectra of Sr14-xCaxCu24O41
	F. S. Pan; Y. Zeng; H. Xie; R. Xiong; Z. X. Yu; W. F. Tang; J. Shi; S. B. Mo
	2005
发表期刊	Chinese Journal of Chemical Physics
ISSN	1003-7713
卷号	18 期号:5 页码:793-797
摘要	The core-level X-ray photoelectron emission spectra of the quasi-one dimensional spin 1/2 antiferromagnetic system Sr14-xCaxCu24O41 (x = 0, 3.5, 6, 7, 8.4) were measured. The main peak of Cu2P(3/2) was about 933.8 eV, and the full width of half maximum height was about 3.3 eV. Simulation of Cu2P(3/2) by XPSPEAK41 shows that the percents of Cu2+ and Cu3+ in Sr14Cu24O41 are 92.13% and 7.87%, no obvious change to Cu2p core-level is observed by the partial substituting Ca for Sr, and the average valence of Cu in this system is estimated to be 2.08. The main peak of O1s is about 531.0 eV, and the weak shoulder toward the low binding energy direction can be considered as the contribution of Ca-O bond. The binding energies of Ca2P(3/2) and Sr3d(5/2) indicate that their valence in this system are both +2, without mixed valence.
部门归属	wuhan univ, dept phys, wuhan 430072, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. wuhan univ, testing ctr, wuhan 430072, peoples r china.;shi, j (reprint author), wuhan univ, dept phys, wuhan 430072, peoples r china;jshi@whu.edu.cn
关键词	Sr1-xcaxcu24o41 Core-level X-ray Photoelectron Emission Spectra Electronic Structure Superconductivity Ladders System Scattering Crystal Valence Chains
URL	查看原文
WOS记录号	WOS:000233231700028
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34993
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. S. Pan,Y. Zeng,H. Xie,et al. Core-level X-ray photoelectron emission spectra of Sr14-xCaxCu24O41[J]. Chinese Journal of Chemical Physics,2005,18(5):793-797.
APA	F. S. Pan.,Y. Zeng.,H. Xie.,R. Xiong.,Z. X. Yu.,...&S. B. Mo.(2005).Core-level X-ray photoelectron emission spectra of Sr14-xCaxCu24O41.Chinese Journal of Chemical Physics,18(5),793-797.
MLA	F. S. Pan,et al."Core-level X-ray photoelectron emission spectra of Sr14-xCaxCu24O41".Chinese Journal of Chemical Physics 18.5(2005):793-797.