The Au-substituted Al-Cu-Fe icosahedral phase: Evidence for bond hybridization
Popescu, R; Macovei, D; Manciu, M; Zavaliche, F; Fratiloiu, D; Jianu, A; Devenyi, A; Manaila, R; Xie, Y; Hu, T; Orton, BR; Cernik, RJ; Tang, CC; 谢亚宁,胡天斗
刊名JOURNAL OF PHYSICS-CONDENSED MATTER
1997
卷号9期号:36页码:7523-7540
学科分类Physics
DOI10.1088/0953-8984/9/36/003
通讯作者INST HIGH ENERGY PHYS,BEIJING SYNCHROTON RADIAT FACIL,BEIJING 100039,PEOPLES R CHINA ; BRUNEL UNIV,DEPT PHYS,UXBRIDGE UB8 3BH,MIDDX,ENGLAND ; SERC,DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND
文章类型Article
英文摘要Au-substituted Al-Cu-Fe icosahedral phases, Al62Cu25.5-xAuxFe12.5 (x less than or equal to 7) were prepared by melt spinning. EDS data showed that Cu as well as Al atoms are effectively substituted for with Au. The hypercubic lattice parameter of as-quenched samples slowly increases with x, while phonon-and phason-type disorders are not affected by Au substitution. Experimental structure factors for 'sum' lines were used to derive an average radius of the atomic hypersurfaces. Comparison of experimental versus calculated ratios of structure factors for different models yielded information about the Au distribution over the icosahedral sites. It was inferred that a fraction of the gold shapes its Al surrounding in a AuAl2-type configuration. Evidence was found for d-sp hybridization of Au-Al bonds, on the basis of the 'white-line' area at the Au L-3 absorption edge.
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:A1997XW05600003
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被引频次:3[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/311005/240121
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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Popescu, R,Macovei, D,Manciu, M,et al. The Au-substituted Al-Cu-Fe icosahedral phase: Evidence for bond hybridization[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,1997,9(36):7523-7540.
APA Popescu, R.,Macovei, D.,Manciu, M.,Zavaliche, F.,Fratiloiu, D.,...&谢亚宁,胡天斗.(1997).The Au-substituted Al-Cu-Fe icosahedral phase: Evidence for bond hybridization.JOURNAL OF PHYSICS-CONDENSED MATTER,9(36),7523-7540.
MLA Popescu, R,et al."The Au-substituted Al-Cu-Fe icosahedral phase: Evidence for bond hybridization".JOURNAL OF PHYSICS-CONDENSED MATTER 9.36(1997):7523-7540.
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