Materials Data on YbEu by Materials Project

Abstract

EuYb is alpha La-derived structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent Yb sites. In the first Yb site, Yb is bonded to six equivalent Yb and six Eu atoms to form YbYb6Eu6 cuboctahedra that share corners with twelve YbYb6Eu6 cuboctahedra, edges with twelve YbYb6Eu6 cuboctahedra, edges with twelve EuYb6Eu6 cuboctahedra, faces with six equivalent YbYb6Eu6 cuboctahedra, and faces with twelve EuYb6Eu6 cuboctahedra. All Yb–Yb bond lengths are 3.89 Å. All Yb–Eu bond lengths are 3.91 Å. In the second Yb site, Yb is bonded to ten equivalent Yb and six Eu atoms to form YbYb10Eu6 cuboctahedra that share corners with ten EuYb6Eu6 cuboctahedra, corners with twelve YbYb6Eu6 cuboctahedra, edges with eight EuYb6Eu6 cuboctahedra, edges with sixteen YbYb6Eu6 cuboctahedra, faces with sixteen equivalent YbYb10Eu6 cuboctahedra, and faces with eighteen EuYb6Eu6 cuboctahedra. There are a spread of Yb–Yb bond distances ranging from 3.89–7.77 Å. All Yb–Eu bond lengths are 3.91 Å. There are three inequivalent Eu sites. In the first Eu site, Eu is bonded to six equivalent Yb and six equivalent Eu atoms to form EuYb6Eu6 cuboctahedra that share corners with twelve EuYb6Eu6 cuboctahedra, edges with twelve equivalent YbYb6Eu6 cuboctahedra, edges with twelve EuYb6Eu6 cuboctahedra, faces with six equivalent EuYb6Eu6 cuboctahedra, and faces with twelve equivalent YbYb6Eu6 cuboctahedra. All Eu–Eu bond lengths are 3.89 Å. In the second Eu site, Eu is bonded to six Yb and six equivalent Eu atoms to form EuYb6Eu6 cuboctahedra that share corners with five equivalent YbYb10Eu6 cuboctahedra, corners with twelve EuYb6Eu6 cuboctahedra, edges with ten YbYb6Eu6 cuboctahedra, edges with twelve EuYb6Eu6 cuboctahedra, faces with six equivalent EuYb6Eu6 cuboctahedra, and faces with fifteen YbYb6Eu6 cuboctahedra. All Eu–Yb bond lengths are 3.91 Å. All Eu–Eu bond lengths are 3.89 Å. In the third Eu site, Eu is bonded to six Yb and six equivalent Eu atoms to form EuYb6Eu6 cuboctahedra that share corners with five equivalent YbYb10Eu6 cuboctahedra, corners with twelve EuYb6Eu6 cuboctahedra, edges with ten YbYb6Eu6 cuboctahedra, edges with twelve EuYb6Eu6 cuboctahedra, faces with six equivalent EuYb6Eu6 cuboctahedra, and faces with fifteen YbYb6Eu6 cuboctahedra. All Eu–Eu bond lengths are 3.89 Å.