The absolute thermoelectric power of some liquid bismuth-based solutions

Abstract

The absolute thermoelectric powers of liquid Bi containing Mg, Hg, As, Te, Se and S have been measured within the temperature range 400–600 °C. The thermopower of liquid Bi is increased by the addition of S, Se, Te or Hg, whereas it is decreased on the addition of As or Mg. The trend of the electro-negativity dependence of these thermopowers is roughly parallel to that of the resistivities. The results are compared with calculations based on the Faber-Ziman theory using three theoretical pair structure factors. Although the agreement is good in resistivities, except for As, there appears to be a serious discrepancy in the case of thermopower.