Materials Data on GaAs by Materials Project
GaAs is Wurtzite structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Ga3+ is bonded to four equivalent As3- atoms to form corner-sharing GaAs4 tetrahedra. There are three shorter (2.49 Å) and one longer (2.50 Å) Ga–As bond lengths. As3- is bonded to four equivalent Ga3+ atoms to form corner-sharing AsGa4 tetrahedra.