wurtzitetype
Wurtzite-type refers to a class of crystal structures characterized by a hexagonal close-packed arrangement of anions with cations occupying half of the tetrahedral interstices. The prototype is the wurtzite structure, as exemplified by zinc sulfide (ZnS) in its hexagonal form. This structure is commonly described by the hexagonal space group P63mc and features ABAB stacking of the close-packed anion layers, yielding hexagonal symmetry. In the wurtzite arrangement, each cation is tetrahedrally coordinated to four anions and each anion to four cations, giving a fourfold coordination environment throughout the lattice.
Many compounds crystallize in a wurtzite-type structure or closely related derivatives, particularly II–VI and III–V semiconductors
Properties associated with wurtzite-type materials include wide band gaps for nitrides and oxides, strong anisotropy in