Materials Data on Sr3Dy by Materials Project
Sr3Dy is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sr is bonded to eight equivalent Sr and four equivalent Dy atoms to form distorted SrSr8Dy4 cuboctahedra that share corners with four equivalent DySr12 cuboctahedra, corners with fourteen equivalent SrSr8Dy4 cuboctahedra, edges with six equivalent DySr12 cuboctahedra, edges with twelve equivalent SrSr8Dy4 cuboctahedra, faces with four equivalent DySr12 cuboctahedra, and faces with sixteen equivalent SrSr8Dy4 cuboctahedra. There are a spread of Sr–Sr bond distances ranging from 3.92–4.17 Å. There are two shorter (3.98 Å) and two longer (4.05 Å) Sr–Dy bond lengths. Dy is bonded to twelve equivalent Sr atoms to form DySr12 cuboctahedra that share corners with six equivalent DySr12 cuboctahedra, corners with twelve equivalent SrSr8Dy4 cuboctahedra, edges with eighteen equivalent SrSr8Dy4 cuboctahedra, faces with eight equivalent DySr12 cuboctahedra, and faces with twelve equivalent SrSr8Dy4 cuboctahedra.