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DOE OSTI · 1672297

Materials Data on YBiTe3 by Materials Project

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Abstract

YBiTe3 is Calaverite-derived structured and crystallizes in the trigonal R3m space group. The structure is two-dimensional and consists of three YBiTe3 sheets oriented in the (0, 0, 1) direction. Y3+ is bonded to six Te2- atoms to form YTe6 octahedra that share corners with three equivalent BiTe6 octahedra, edges with three equivalent BiTe6 octahedra, and edges with six equivalent YTe6 octahedra. The corner-sharing octahedral tilt angles are 3°. There are three shorter (3.02 Å) and three longer (3.20 Å) Y–Te bond lengths. Bi3+ is bonded to six Te2- atoms to form BiTe6 octahedra that share corners with three equivalent YTe6 octahedra, edges with three equivalent YTe6 octahedra, and edges with six equivalent BiTe6 octahedra. The corner-sharing octahedral tilt angles are 3°. There are three shorter (3.06 Å) and three longer (3.36 Å) Bi–Te bond lengths. There are three inequivalent Te2- sites. In the first Te2- site, Te2- is bonded to three equivalent Y3+ and three equivalent Bi3+ atoms to form distorted edge-sharing TeY3Bi3 octahedra. In the second Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent Bi3+ atoms. In the third Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent Y3+ atoms.

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36 MATERIALS SCIENCEBi-Te-Ycrystal structureYBiTe3

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2020-05-02. Materials Data on YBiTe3 by Materials Project. https://doi.org/10.17188/1672297

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36 MATERIALS SCIENCE↗