The Au-substituted Al-Cu-Fe icosahedral phase: Evidence for bond hybridization
文献类型：期刊论文
| 作者 | Popescu, R; Macovei, D; Manciu, M; Zavaliche, F; Fratiloiu, D; Jianu, A; Devenyi, A; Manaila, R; Xie, Y; Hu, T
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| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
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| 出版日期 | 1997 |
| 卷号 | 9期号:36页码:7523-7540 |
| 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 |
| 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. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Condensed Matter |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1997XW05600003 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240121]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | 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. |
入库方式： OAI收割
来源：高能物理研究所
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