Unique labelling of symmetry coordinates and cyclic regions in crystals
- 1 November 1982
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 15 (11) , 3383-3393
- https://doi.org/10.1088/0305-4470/15/11/015
Abstract
Earlier work on unique labelling schemes in Oh symmetry is extended to include 48-atom shells and the symmetry coordinates of shells subject to periodicity conditions. A new approach to labelling is introduced based on the concept of cyclic regions in a crystal. These are described by finite factor groups of the crystallographic space group which contain the isogonal group as a subgroup. Some examples are worked out in detail.Keywords
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