Materials Data on YFeCo by Materials Project
YFeCo is Hexagonal Laves-derived structured and crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. Y is bonded in a 12-coordinate geometry to six equivalent Fe and six equivalent Co atoms. There are two shorter (2.98 Å) and four longer (3.05 Å) Y–Fe bond lengths. There are two shorter (2.98 Å) and four longer (3.01 Å) Y–Co bond lengths. Fe is bonded to six equivalent Y, two equivalent Fe, and four equivalent Co atoms to form FeY6Fe2Co4 cuboctahedra that share corners with eight equivalent CoY6Fe4Co2 cuboctahedra, corners with ten equivalent FeY6Fe2Co4 cuboctahedra, edges with six equivalent FeY6Fe2Co4 cuboctahedra, faces with six equivalent FeY6Fe2Co4 cuboctahedra, and faces with twelve equivalent CoY6Fe4Co2 cuboctahedra. Both Fe–Fe bond lengths are 2.55 Å. All Fe–Co bond lengths are 2.56 Å. Co is bonded to six equivalent Y, four equivalent Fe, and two equivalent Co atoms to form CoY6Fe4Co2 cuboctahedra that share corners with eight equivalent FeY6Fe2Co4 cuboctahedra, corners with ten equivalent CoY6Fe4Co2 cuboctahedra, edges with six equivalent CoY6Fe4Co2 cuboctahedra, faces with six equivalent CoY6Fe4Co2 cuboctahedra, and faces with twelve equivalent FeY6Fe2Co4 cuboctahedra. Both Co–Co bond lengths are 2.62 Å.