The clathrate I Ba8Ge43□3 [space group \( Ia\bar{3}d \), no. 230, a = 21.307(1) Å] has been synthesized as a single phase and characterized by x-ray powder diffraction and metallographic analysis. Electrical and thermal transport measurements have been performed in the temperature range of 5 K to 673 K. Ba8Ge43□3 displays the electrical resistivity of a poor metal at low temperatures, with semiconducting-like behavior appearing above 300 K.
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Acknowledgements
We thank R. Hempel-Weber for ZEM 3 measurements and the competence groups Structure and Metallography at MPI CPfS. C. Candolfi acknowledges financial support from the CNRS-MPG program.
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Candolfi, C., Aydemir, U., Baitinger, M. et al. Thermoelectric Properties of the Clathrate I Ba8Ge43□3 . J. Electron. Mater. 39, 2039–2042 (2010). https://doi.org/10.1007/s11664-009-1011-0
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DOI: https://doi.org/10.1007/s11664-009-1011-0