Materials Data on Yb3Tm by Materials Project
Yb3Tm is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Yb is bonded to eight equivalent Yb and four equivalent Tm atoms to form YbYb8Tm4 cuboctahedra that share corners with four equivalent TmYb12 cuboctahedra, corners with fourteen equivalent YbYb8Tm4 cuboctahedra, edges with six equivalent TmYb12 cuboctahedra, edges with twelve equivalent YbYb8Tm4 cuboctahedra, faces with four equivalent TmYb12 cuboctahedra, and faces with sixteen equivalent YbYb8Tm4 cuboctahedra. There are a spread of Yb–Yb bond distances ranging from 3.65–3.84 Å. There are two shorter (3.69 Å) and two longer (3.75 Å) Yb–Tm bond lengths. Tm is bonded to twelve equivalent Yb atoms to form TmYb12 cuboctahedra that share corners with six equivalent TmYb12 cuboctahedra, corners with twelve equivalent YbYb8Tm4 cuboctahedra, edges with eighteen equivalent YbYb8Tm4 cuboctahedra, faces with eight equivalent TmYb12 cuboctahedra, and faces with twelve equivalent YbYb8Tm4 cuboctahedra.