A Quasi-Unit Cell Model for Al-Ni-Co Ideal Quasicrystal based on Clusters with Broken 10-fold Symmetry
نویسندگان
چکیده
We have constructed a structural solution for the Al72Ni20Co8 decagonal quasicrystal based on the quasi-unit cell picture. The solution gives a significantly improved fit to experiments compared to a previous proposal by us while retaining the feature that the fundamental, repeating cluster has broken 10-fold symmetry. We present a series of arguments, including new evidence based on high-resolution transmission electron microscopy, which supports this solution over alternatives with 10-fold symmetric clusters. Typeset using REVTEX
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