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6 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on GaAs by Materials Project

GaAs is High Pressure Cadmuum Telluride structured and crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. Ga3+ is bonded in a linear geometry to two equivalent As3- atoms. Both Ga–As bond lengths are 2.73 Å. As3- is bonded to two equivalent Ga3+ and four equivalent As3- atoms to form a mixture of edge and corner-sharing AsGa2As4 octahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are two shorter (2.71 Å) and two longer (2.72 Å) As–As bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GaAs by Materials Project

GaAs is SC16 CuCl, stable at 5GPa structured and crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Ga3+ is bonded to four equivalent As3- atoms to form corner-sharing GaAs4 tetrahedra. There are one shorter (2.45 Å) and three longer (2.54 Å) Ga–As bond lengths. As3- is bonded to four equivalent Ga3+ atoms to form corner-sharing AsGa4 trigonal pyramids.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GaAs by Materials Project

GaAs is Zincblende, Sphalerite structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Ga3+ is bonded to four equivalent As3- atoms to form corner-sharing GaAs4 tetrahedra. All Ga–As bond lengths are 2.49 Å. As3- is bonded to four equivalent Ga3+ atoms to form corner-sharing AsGa4 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GaAs by Materials Project

GaAs crystallizes in the monoclinic Cm space group. The structure is three-dimensional. Ga3+ is bonded in a distorted see-saw-like geometry to four equivalent As3- atoms. There are two shorter (2.67 Å) and two longer (2.69 Å) Ga–As bond lengths. As3- is bonded in a distorted see-saw-like geometry to four equivalent Ga3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

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.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GaAs by Materials Project

GaAs is High Pressure Cadmuum Telluride structured and crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. Ga3+ is bonded in a distorted bent 150 degrees geometry to two equivalent As3- atoms. Both Ga–As bond lengths are 2.82 Å. As3- is bonded in a 6-coordinate geometry to two equivalent Ga3+ and four equivalent As3- atoms. There are two shorter (2.68 Å) and two longer (2.82 Å) As–As bond lengths.

36 MATERIALS SCIENCE↗