Materials Data on SmHoO3 by Materials Project

Abstract

HoSmO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ho3+ is bonded to six O2- atoms to form corner-sharing HoO6 octahedra. The corner-sharing octahedra tilt angles range from 43–47°. There are a spread of Ho–O bond distances ranging from 2.23–2.30 Å. Sm3+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Sm–O bond distances ranging from 2.29–2.78 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Ho3+ and two equivalent Sm3+ atoms to form distorted corner-sharing OSm2Ho2 trigonal pyramids. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ho3+ and two equivalent Sm3+ atoms.