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
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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. |
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