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DPG

Regensburg 2007 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 52: Transport properties

HL 52.7: Talk

Friday, March 30, 2007, 12:30–12:45, H14

CoTiSb as a thermoelectric material — •Joachim Barth1, Rosa Robert2, Anke Weidenkaff2, Kristian Kroth1, and Claudia Felser11Johannes Gutenberg Universität 55128 Mainz Staudinger Weg 9 — 2EMPA CH-8600 Dübendorf Überlandstraße 129

The C1b compound CoTiSb has been investigated as a thermoelectric material for power generation. LMTO calculations of the undoped compound are presented. The samples have been prepared by arcmelting under argon atmosphere. Ti has been substituted with V or Y to optimize the figure of merit. The Seebeck coefficient, the thermal conductivity and the electrical conductivity have been measured in the temperature range from 2-600 K.

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