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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on SmSnAu by Materials Project

SmAuSn is half-Heusler structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Sm is bonded to four equivalent Au and six equivalent Sn atoms to form a mixture of distorted face and corner-sharing SmSn6Au4 tetrahedra. All Sm–Au bond lengths are 2.96 Å. All Sm–Sn bond lengths are 3.42 Å. Au is bonded in a body-centered cubic geometry to four equivalent Sm and four equivalent Sn atoms. All Au–Sn bond lengths are 2.96 Å. Sn is bonded in a 4-coordinate geometry to six equivalent Sm and four equivalent Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmSnAu by Materials Project

SmAuSn crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Sm is bonded in a 12-coordinate geometry to six equivalent Au and six equivalent Sn atoms. There are three shorter (3.06 Å) and three longer (3.68 Å) Sm–Au bond lengths. There are three shorter (3.24 Å) and three longer (3.45 Å) Sm–Sn bond lengths. Au is bonded in a 10-coordinate geometry to six equivalent Sm and four equivalent Sn atoms. There are three shorter (2.84 Å) and one longer (3.06 Å) Au–Sn bond lengths. Sn is bonded in a 10-coordinate geometry to six equivalent Sm and four equivalent Au atoms.

36 MATERIALS SCIENCE↗