Wyckoff positions
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In crystallography, a Wyckoff position is a point belonging to a set of points for which site symmetry groups are conjugate subgroups of the space group.[1] Crystallography tables give the Wyckoff positions for different space groups.
Wyckoff positions are used in calculations of crystal properties. There are two types of positions: general and special.
- General positions are left invariant only for the identity operation (E). Each space group has only one general position.
- Special positions are left invariant by the identity operation and at least one other operation of the space group.
[edit] External links
[edit] References
- ^ Lev. Kantorovich (2004). Quantum Theory of the Solid State: An Introduction. Springer. p. 28. http://www.springer.com/west/home/materials?SGWID=4-10041-22-33589604-0.
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