Fig. 12: Examples of ordered structures which can be described by concentration waves.

The L12 structure is an ordered structure on the fcc lattice, while the B2 structure is an ordered structure on the bcc lattice. Both are described by wavevectors k = (0, 0, 2π/a) and equivalent for their respective lattice types. Structures are described by their Strukturbericht designation, primitive lattice vectors are denoted by dashed lines, and atomic sites are given their Wyckoff labels.