Polarization-dependent soft X-ray absorption of over-doped superconducting Sr2CuO3+delta single crystal

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	Polarization-dependent soft X-ray absorption of over-doped superconducting Sr2CuO3+delta single crystal
	Wang, HB ; Liang, W ; Liu, QQ ; Huang, HL ; Yang, MM ; Luo, ZL ; Yang, YJ ; Hu, SX ; Jin, CQ ; Gao, C
刊名	JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA
	2014
卷号	196 页码:61
关键词	Polarized XAS Electronic structure Sr2CuO3+delta
ISSN号	0368-2048
通讯作者	Gao, C (reprint author), Univ Sci & Technol China, Natl Synchrotron Radiat Lab, 42 South Hezuohua Rd, Hefei 230029, Anhui, Peoples R China.
中文摘要	In order to study the factors affecting superconductivity of Sr2CuO3+delta, polarized X-ray absorption spectra (XAS) were measured at Cu L-23 edge and O K edge of an over-doped single crystal specimen. This polarized XAS study reveals a distinctive anisotropic local electronic structure of Cu coordination: the unoccupied states are dominated by the in-plane components of Cu 3d(x2-y2) and O 2p(x,y). However, the signal from the unoccupied out-of-plane O 2p(z) and Cu 3d(z2) states also appear. Furthermore, the detailed analysis of Cu L-3-edge XAS at 300K and 17.3 K indicates that the conductive carrier partly shifts from out-of-plane to in-plane in the superconducting state. Theoretical calculation of Cu L-23-edge core level spectra based on Charge Transfer Multiplet theory is fairly consistent with above experimental results. (C) 2014 Elsevier B.V. All rights reserved.
资助信息	National Basic Research Program of China (973 Program) [2012CB922004/3, 2010CB934501, 2009CB929502]; Natural Science Foundation of China [11004178, 50832005, 51021091]; Chinese Universities Scientific Fund; NSRRC [BL05B3]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59190]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Wang, HB,Liang, W,Liu, QQ,et al. Polarization-dependent soft X-ray absorption of over-doped superconducting Sr2CuO3+delta single crystal[J]. JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA,2014,196:61.
APA	Wang, HB.,Liang, W.,Liu, QQ.,Huang, HL.,Yang, MM.,...&Gao, C.(2014).Polarization-dependent soft X-ray absorption of over-doped superconducting Sr2CuO3+delta single crystal.JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA,196,61.
MLA	Wang, HB,et al."Polarization-dependent soft X-ray absorption of over-doped superconducting Sr2CuO3+delta single crystal".JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 196(2014):61.