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.