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DOE OSTI · 1290020

Materials Data on PrHfO3 by Materials Project

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Abstract

PrHfO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Pr is bonded in a 4-coordinate geometry to eight O atoms. There are a spread of Pr–O bond distances ranging from 2.43–2.87 Å. Hf is bonded to six O atoms to form corner-sharing HfO6 octahedra. The corner-sharing octahedra tilt angles range from 28–32°. There are a spread of Hf–O bond distances ranging from 2.10–2.16 Å. There are two inequivalent O sites. In the first O site, O is bonded to two equivalent Pr and two equivalent Hf atoms to form distorted corner-sharing OPr2Hf2 tetrahedra. In the second O site, O is bonded in a 5-coordinate geometry to three equivalent Pr and two equivalent Hf atoms.

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36 MATERIALS SCIENCEcrystal structureHf-O-PrPrHfO3

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2020-05-02. Materials Data on PrHfO3 by Materials Project. https://doi.org/10.17188/1290020

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