Abstract
The structure of a decagonal Al72Ni20Co8 quasicrystal with space group P105/mmc has been determined on the basis of a single-crystal X-ray data set using the five-dimensional description. The best-fit model structure based on a cluster model having lower symmetry than the decagonal symmetry with 103 parameters gives wR = 0.045 and R = 0.063 for 449 reflections. The structure is well described by the hexagon, boat and star tiling with an edge length of 6.36 Å and is very consistent with recent high-resolution electron-microscopy images. The refined structure is compared with previously discussed model structures including cluster-based models having 20 Å tenfold symmetric clusters.
Original language | English |
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Pages (from-to) | 576-585 |
Number of pages | 10 |
Journal | Acta Crystallographica Section A: Foundations of Crystallography |
Volume | 57 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2001 Jan 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Structural Biology