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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on InGaSb2 by Materials Project

InGaSb2 is Chalcopyrite-like structured and crystallizes in the tetragonal P-4m2 space group. The structure is three-dimensional. In3+ is bonded to four equivalent Sb3- atoms to form InSb4 tetrahedra that share corners with four equivalent InSb4 tetrahedra and corners with eight equivalent GaSb4 tetrahedra. All In–Sb bond lengths are 2.85 Å. Ga3+ is bonded to four equivalent Sb3- atoms to form GaSb4 tetrahedra that share corners with four equivalent GaSb4 tetrahedra and corners with eight equivalent InSb4 tetrahedra. All Ga–Sb bond lengths are 2.73 Å. Sb3- is bonded to two equivalent In3+ and two equivalent Ga3+ atoms to form corner-sharing SbIn2Ga2 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on InGaSb2 by Materials Project

InGaSb2 is Chalcopyrite-like structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. In3+ is bonded to four Sb3- atoms to form InSb4 tetrahedra that share corners with six equivalent InSb4 tetrahedra and corners with six equivalent GaSb4 tetrahedra. There are three shorter (2.83 Å) and one longer (2.87 Å) In–Sb bond lengths. Ga3+ is bonded to four Sb3- atoms to form GaSb4 tetrahedra that share corners with six equivalent InSb4 tetrahedra and corners with six equivalent GaSb4 tetrahedra. There are one shorter (2.69 Å) and three longer (2.76 Å) Ga–Sb bond lengths. There are two inequivalent Sb3- sites. In the first Sb3- site, Sb3- is bonded to three equivalent In3+ and one Ga3+ atom to form corner-sharing SbIn3Ga tetrahedra. In the second Sb3- site, Sb3- is bonded to one In3+ and three equivalent Ga3+ atoms to form corner-sharing SbInGa3 tetrahedra.

36 MATERIALS SCIENCE↗