Materials Data on CeSm by Materials Project

Abstract

SmCe is alpha Samarium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sm is bonded to six equivalent Sm and six equivalent Ce atoms to form SmCe6Sm6 cuboctahedra that share corners with eighteen equivalent SmCe6Sm6 cuboctahedra, edges with six equivalent SmCe6Sm6 cuboctahedra, edges with twelve equivalent CeCe6Sm6 cuboctahedra, faces with eight equivalent SmCe6Sm6 cuboctahedra, and faces with twelve equivalent CeCe6Sm6 cuboctahedra. All Sm–Sm bond lengths are 3.51 Å. All Sm–Ce bond lengths are 3.56 Å. Ce is bonded to six equivalent Sm and six equivalent Ce atoms to form CeCe6Sm6 cuboctahedra that share corners with twelve equivalent CeCe6Sm6 cuboctahedra, edges with twelve equivalent SmCe6Sm6 cuboctahedra, edges with twelve equivalent CeCe6Sm6 cuboctahedra, faces with six equivalent CeCe6Sm6 cuboctahedra, and faces with twelve equivalent SmCe6Sm6 cuboctahedra. All Ce–Ce bond lengths are 3.51 Å.