Materials Data on GdEr3 by Materials Project
Er3Gd is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Er is bonded to eight equivalent Er and four equivalent Gd atoms to form ErGd4Er8 cuboctahedra that share corners with four equivalent GdEr12 cuboctahedra, corners with fourteen equivalent ErGd4Er8 cuboctahedra, edges with six equivalent GdEr12 cuboctahedra, edges with twelve equivalent ErGd4Er8 cuboctahedra, faces with four equivalent GdEr12 cuboctahedra, and faces with sixteen equivalent ErGd4Er8 cuboctahedra. There are a spread of Er–Er bond distances ranging from 3.50–3.60 Å. There are two shorter (3.51 Å) and two longer (3.58 Å) Er–Gd bond lengths. Gd is bonded to twelve equivalent Er atoms to form GdEr12 cuboctahedra that share corners with six equivalent GdEr12 cuboctahedra, corners with twelve equivalent ErGd4Er8 cuboctahedra, edges with eighteen equivalent ErGd4Er8 cuboctahedra, faces with eight equivalent GdEr12 cuboctahedra, and faces with twelve equivalent ErGd4Er8 cuboctahedra.