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Unifying cluster-based structure models of decagonal Al-Co-Ni, Al-Co-Cu and Al-Fe-Ni
The geometrical building principles of Al‐based decagonal quasicrystals and their approximants are discussed from a cluster‐based approach. Our investigations cover 11 modifications with two‐ or four‐layer periodicity in the systems Al–Co–Ni, Al–Co–Cu and Al–Fe–Ni. We identified a cluster that leads...
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Published in: | Acta crystallographica. Section B, Structural science Structural science, 2011-02, Vol.67 (1), p.1-17 |
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Main Authors: | , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The geometrical building principles of Al‐based decagonal quasicrystals and their approximants are discussed from a cluster‐based approach. Our investigations cover 11 modifications with two‐ or four‐layer periodicity in the systems Al–Co–Ni, Al–Co–Cu and Al–Fe–Ni. We identified a cluster that leads to a unifying view of all these phases. This unit cluster has ∼ 20 Å diameter, four‐layer periodicity along its tenfold axis and rod symmetry group . The models obtained are in agreement with all the electron‐density maps and electron‐microscopy images available. |
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ISSN: | 0108-7681 2052-5192 1600-5740 2052-5206 |
DOI: | 10.1107/S0108768110040942 |