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Hg L-3 edge absorption study of the HgBa2CuO4+delta superconductor
Wu ZY(吴自玉); Wu, ZY; Saini, NL; Bianconi, A
2001
发表期刊PHYSICAL REVIEW B
卷号64期号:9页码:92507
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China ; Univ Roma La Sapienza, Unita INFM, I-00185 Rome, Italy ; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy ; Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
文章类型Article
摘要The HgBa2CuO4+delta superconductor has been studied by high resolution Hg L-3 x-ray absorption near-edge structure (XANES) spectroscopy. The XANES spectrum has been simulated by full multiple-scattering calculations in order to explore the origin of different features in the experimental spectrum. The experimental Hg L-3-edge spectrum could be well reproduced by considering a cluster of 85 atoms, containing 10 shells, within a radius of about 7 Angstrom from the central Hg atom. The low energy spectral feature in the XANES spectrum is found to be due to a transition from the Hg p states to the electronic states hybridized with higher shell Ba atoms. This implies that the transition features in the Hg L3-edge XANES are strongly influenced by medium range order effects unlike the case of L-3 edge of 3d transition metals where short-range order is enough to describe the main transition features.
学科领域Physics
研究领域[WOS]Physics ; Physics
DOI10.1103/PhysRevB.64.092507
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语种英语
研究领域[WOS]Physics ; Physics
WOS类目Physics, Condensed Matter
WOS记录号WOS:000170726000027
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被引频次:4[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/311005/240848
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
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Wu ZY,Wu, ZY,Saini, NL,et al. Hg L-3 edge absorption study of the HgBa2CuO4+delta superconductor[J]. PHYSICAL REVIEW B,2001,64(9):92507.
APA 吴自玉,Wu, ZY,Saini, NL,&Bianconi, A.(2001).Hg L-3 edge absorption study of the HgBa2CuO4+delta superconductor.PHYSICAL REVIEW B,64(9),92507.
MLA 吴自玉,et al."Hg L-3 edge absorption study of the HgBa2CuO4+delta superconductor".PHYSICAL REVIEW B 64.9(2001):92507.
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