Materials Data on Eu2HoTaO6 by Materials Project

Abstract

HoEu2TaO6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ho3+ is bonded to six equivalent O2- atoms to form HoO6 octahedra that share corners with six equivalent TaO6 octahedra and faces with eight equivalent EuO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ho–O bond lengths are 2.20 Å. Eu2+ is bonded to twelve equivalent O2- atoms to form EuO12 cuboctahedra that share corners with twelve equivalent EuO12 cuboctahedra, faces with six equivalent EuO12 cuboctahedra, faces with four equivalent HoO6 octahedra, and faces with four equivalent TaO6 octahedra. All Eu–O bond lengths are 2.97 Å. Ta5+ is bonded to six equivalent O2- atoms to form TaO6 octahedra that share corners with six equivalent HoO6 octahedra and faces with eight equivalent EuO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ta–O bond lengths are 1.99 Å. O2- is bonded in a distorted linear geometry to one Ho3+, four equivalent Eu2+, and one Ta5+ atom.