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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CoTeO3 by Materials Project

CoTeO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Co2+ is bonded to six O2- atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedra tilt angles range from 47–52°. There are a spread of Co–O bond distances ranging from 2.10–2.30 Å. Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There is one shorter (1.94 Å) and two longer (1.96 Å) Te–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Co2+ and one Te4+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Co2+ and one Te4+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CoTeO3 by Materials Project

CoTeO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Co2+ is bonded to six equivalent O2- atoms to form CoO6 octahedra that share corners with six equivalent CoO6 octahedra and faces with eight equivalent TeO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Co–O bond lengths are 1.89 Å. Te4+ is bonded to twelve equivalent O2- atoms to form TeO12 cuboctahedra that share corners with twelve equivalent TeO12 cuboctahedra, faces with six equivalent TeO12 cuboctahedra, and faces with eight equivalent CoO6 octahedra. All Te–O bond lengths are 2.67 Å. O2- is bonded in a distorted linear geometry to two equivalent Co2+ and four equivalent Te4+ atoms.

36 MATERIALS SCIENCE↗