A new quaternary bismuth telluride compound was discovered and characterized by single crystal X-ray diffraction.  K(RE)Bi2Te6 (RE=La, Ce, Nd, Yb) was discovered using a reactive flux synthesis between K2Te2, Bi, RE, and additional Te in a sealed fused silica ampoule.  The X-ray diffraction showed the compound forms Bi-Te octahedra that are similar to the known Bi2Te3 thermoelectric.  The Re-Te forms a seven coordinate square antiprisms similar to Dy2Te3.  The K atoms lie in 1-dimensional channels.  The structures are currently being investigated for their magnetic and thermoelectric properties.

New quaternary rare earth bismuth telluride with potential thermoelectric properties

247th National Meeting (2014)

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