Materials Data on Ho2AlFe3 by Materials Project

Abstract

Ho2Fe3Al is Cubic Laves-derived structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Ho is bonded in a 12-coordinate geometry to four equivalent Ho, nine equivalent Fe, and three equivalent Al atoms. There are one shorter (3.11 Å) and three longer (3.19 Å) Ho–Ho bond lengths. There are six shorter (3.02 Å) and three longer (3.07 Å) Ho–Fe bond lengths. All Ho–Al bond lengths are 3.04 Å. Fe is bonded to six equivalent Ho, four equivalent Fe, and two equivalent Al atoms to form FeHo6Al2Fe4 cuboctahedra that share corners with four equivalent AlHo6Fe6 cuboctahedra, corners with fourteen equivalent FeHo6Al2Fe4 cuboctahedra, edges with six equivalent FeHo6Al2Fe4 cuboctahedra, faces with six equivalent AlHo6Fe6 cuboctahedra, and faces with twelve equivalent FeHo6Al2Fe4 cuboctahedra. All Fe–Fe bond lengths are 2.59 Å. Both Fe–Al bond lengths are 2.59 Å. Al is bonded to six equivalent Ho and six equivalent Fe atoms to form AlHo6Fe6 cuboctahedra that share corners with six equivalent AlHo6Fe6 cuboctahedra, corners with twelve equivalent FeHo6Al2Fe4 cuboctahedra, edges with six equivalent AlHo6Fe6 cuboctahedra, and faces with eighteen equivalent FeHo6Al2Fe4 cuboctahedra.