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DOE OSTI · 1325074

Materials Data on AlGaN2 by Materials Project

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Abstract

GaAlN2 is Chalcopyrite-like structured and crystallizes in the tetragonal P-4m2 space group. The structure is three-dimensional. Ga3+ is bonded to four equivalent N3- atoms to form GaN4 tetrahedra that share corners with four equivalent GaN4 tetrahedra and corners with eight equivalent AlN4 tetrahedra. All Ga–N bond lengths are 1.97 Å. Al3+ is bonded to four equivalent N3- atoms to form AlN4 tetrahedra that share corners with four equivalent AlN4 tetrahedra and corners with eight equivalent GaN4 tetrahedra. All Al–N bond lengths are 1.91 Å. N3- is bonded to two equivalent Ga3+ and two equivalent Al3+ atoms to form corner-sharing NAl2Ga2 tetrahedra.

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36 MATERIALS SCIENCEAl-Ga-NAlGaN2crystal structure

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2020-07-24. Materials Data on AlGaN2 by Materials Project. https://doi.org/10.17188/1325074

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