J. Phys. Colloques
Volume 41, Numéro C8, Août 1980Fourth International Conference on Liquid and Amorphous Metals
|Page(s)||C8-519 - C8-523|
J. Phys. Colloques 41 (1980) C8-519-C8-523
ELECTRICAL RESISTIVITY AND THERMOELECTRIC POWER OF LIQUID Ge-Sb AND Pb-Sb ALLOYSA. Bath, J.G. Gasser, J.L. Bretonnet, R. Bianchin et R. Kleim
Laboratoire de Physique des Milieux Condensés, Faculté des Sciences, Ile du Saulcy, 57000 Metz, France
The resistivity ρ and the thermoelectric power S have been measured for the system Pb-Sb from the liquidus to 800°C, and S for the system Ge-Sb up to 950°C. The whole phase diagram has been explored. For the two systems ρ is a smooth function of concentration and the overall behaviour of S is the same, with very small values for Ge-Sb. The dρ/dT is always positive for Pb-Sb, and no anomalous behaviour is observed near the eutectic composition as for Ge-Sb. The results are interpreted in terms of the empty core model potential and hard-sphere interference functions, with different dielectric screening functions.