Distortions of the atomic structure of 2/1 approximants of icosahedral quasicrystals
- Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)
Ideal structures of several 2/1 approximants of icosahedral quasicrystals with the sp. gr. Pm-bar 3 and Pa-bar 3 have been constructed. It is shown that most atoms have dodecadhedral local coordination. The structural features of the crystals studied have been analyzed. It is found that displacements of atoms from ideal positions in real crystals tend to increase with an increase in the distance to the center of the approximant projection on the perpendicular space. Large displacements are generally related to the presence of very close neighbors in the ideal structure of the approximant. The importance of the investigation of approximants as a source of information about the structure of polyatomic nanoclusters is indicated.
- OSTI ID:
- 21090716
- Journal Information:
- Crystallography Reports, Vol. 52, Issue 6; Other Information: DOI: 10.1134/S1063774507060181; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
- Country of Publication:
- United States
- Language:
- English
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