Materials Data on Pm3Ho by Materials Project

Abstract

HoPm3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ho is bonded to twelve equivalent Pm atoms to form HoPm12 cuboctahedra that share corners with six equivalent HoPm12 cuboctahedra, corners with twelve equivalent PmPm8Ho4 cuboctahedra, edges with eighteen equivalent PmPm8Ho4 cuboctahedra, faces with eight equivalent HoPm12 cuboctahedra, and faces with twelve equivalent PmPm8Ho4 cuboctahedra. There are six shorter (3.63 Å) and six longer (3.65 Å) Ho–Pm bond lengths. Pm is bonded to four equivalent Ho and eight equivalent Pm atoms to form PmPm8Ho4 cuboctahedra that share corners with four equivalent HoPm12 cuboctahedra, corners with fourteen equivalent PmPm8Ho4 cuboctahedra, edges with six equivalent HoPm12 cuboctahedra, edges with twelve equivalent PmPm8Ho4 cuboctahedra, faces with four equivalent HoPm12 cuboctahedra, and faces with sixteen equivalent PmPm8Ho4 cuboctahedra. There are a spread of Pm–Pm bond distances ranging from 3.63–3.67 Å.