Editing Wigner–Seitz cell (section)

==Brillouin zone==
{{main|Brillouin zone}}
In practice, the Wigner–Seitz cell itself is actually rarely used as a description of [[Bravais lattice|direct space]], where the conventional [[unit cell]]s are usually used instead. However, the same decomposition is extremely important when applied to [[Reciprocal lattice|reciprocal space]]. The Wigner–Seitz cell in the reciprocal space is called the [[Brillouin zone]], which is used in constructing band diagrams to determine whether a material will be a [[Electrical conductor|conductor]], [[semiconductor]] or an [[Insulator (electrical)|insulator]].