Disorder and complexity in the atomic structure of the perfect icosahedral alloy of Al-Pd-Mn
The atomic structure of the perfect Al)Pd)Mn icosahedral phase has been studied on single grain samples. Using anomalous X-ray diffraction close to the palladium edge, the partial structure factor F sub Pd has been extracted. In the six-dimensional description of its structure, we find that the atom...
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| Veröffentlicht in: | Physical review letters 1994-05, Vol.72 (22), p.3538-3541 |
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| container_title | Physical review letters |
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| creator | de Boissieu M Stephens, P Boudard, M Janot, C Chapman, DL Audier, M |
| description | The atomic structure of the perfect Al)Pd)Mn icosahedral phase has been studied on single grain samples. Using anomalous X-ray diffraction close to the palladium edge, the partial structure factor F sub Pd has been extracted. In the six-dimensional description of its structure, we find that the atomic surface cannot be described by an object with a sharp boundary. A phason Debye)Waller term has been introduced to fully account for the data. It is interpreted as resulting from random phason disorder and nonsphericity of the atomic surfaces. |
| doi_str_mv | 10.1103/physrevlett.72.3538 |
| format | Article |
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Using anomalous X-ray diffraction close to the palladium edge, the partial structure factor F sub Pd has been extracted. In the six-dimensional description of its structure, we find that the atomic surface cannot be described by an object with a sharp boundary. A phason Debye)Waller term has been introduced to fully account for the data. 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Using anomalous X-ray diffraction close to the palladium edge, the partial structure factor F sub Pd has been extracted. In the six-dimensional description of its structure, we find that the atomic surface cannot be described by an object with a sharp boundary. A phason Debye)Waller term has been introduced to fully account for the data. 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Using anomalous X-ray diffraction close to the palladium edge, the partial structure factor F sub Pd has been extracted. In the six-dimensional description of its structure, we find that the atomic surface cannot be described by an object with a sharp boundary. A phason Debye)Waller term has been introduced to fully account for the data. It is interpreted as resulting from random phason disorder and nonsphericity of the atomic surfaces.</abstract><cop>United States</cop><pmid>10056225</pmid><doi>10.1103/physrevlett.72.3538</doi><tpages>4</tpages></addata></record> |
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| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 1994-05, Vol.72 (22), p.3538-3541 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_osti_scitechconnect_7233716 |
| source | American Physical Society Journals |
| subjects | 360102 - Metals & Alloys- Structure & Phase Studies ALLOY SYSTEMS ALLOYS ALUMINIUM ALLOYS DEBYE-WALLER FACTOR ELECTRONIC STRUCTURE MANGANESE ALLOYS MATERIALS SCIENCE PALLADIUM ALLOYS PLATINUM METAL ALLOYS SPECTRA STRUCTURE FACTORS TERNARY ALLOY SYSTEMS X-RAY SPECTRA |
| title | Disorder and complexity in the atomic structure of the perfect icosahedral alloy of Al-Pd-Mn |
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