A study of the Nb3Ge system by GeK-edge extended x-ray absorption fine structure and x-ray absorption near-edge structure spectroscopy
Saini, NL; Filippi, M; Wu ZY(吴自玉); Wu, ZY; Oyanagi, H; Ihara, H; Iyo, A; Agrestini, S; Bianconi, A
刊名JOURNAL OF PHYSICS-CONDENSED MATTER
2002
卷号14期号:49页码:13543-13550
学科分类Physics
DOI10.1088/0953-8984/14/49/310
通讯作者Univ Roma La Sapienza, Unita INFM, I-00185 Rome, Italy ; Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China ; Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 305, Japan ; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
文章类型Article
英文摘要The local structure of Nb3Ge intermetallic superconductor has been studied by Ge K-edge absorption spectroscopy. Extended x-ray absorption fine structure (EXAFS) experiments show two Ge-Nb distances. In addition to the crystallographic distance of similar to2.87 Angstrom, there exists a second Ge-Nb distance, shorter than the first by similar to0.2 Angstrom, assigned to a phase with short-range symmetry related to local displacements in the Nb-Nb chains. The x-ray absorption near-edge structure (XANES) spectrum has been simulated by full multiple-scattering calculations considering the local displacements determined by the EXAFS analysis. The XANES spectrum has been well reproduced by considering a cluster of 99 atoms within a radius of about 7 Angstrom from the central Ge atom and introducing determined local displacements.
类目[WOS]Physics, Condensed Matter
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000180415500015
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240192
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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Saini, NL,Filippi, M,Wu ZY,et al. A study of the Nb3Ge system by GeK-edge extended x-ray absorption fine structure and x-ray absorption near-edge structure spectroscopy[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2002,14(49):13543-13550.
APA Saini, NL.,Filippi, M.,吴自玉.,Wu, ZY.,Oyanagi, H.,...&Bianconi, A.(2002).A study of the Nb3Ge system by GeK-edge extended x-ray absorption fine structure and x-ray absorption near-edge structure spectroscopy.JOURNAL OF PHYSICS-CONDENSED MATTER,14(49),13543-13550.
MLA Saini, NL,et al."A study of the Nb3Ge system by GeK-edge extended x-ray absorption fine structure and x-ray absorption near-edge structure spectroscopy".JOURNAL OF PHYSICS-CONDENSED MATTER 14.49(2002):13543-13550.
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