Abstract. The electrical conductivity, 1g sigma , of Se₈₀Te_20-xS_x was measured, in the liquid state (225-320 degrees C) as a function of temperature. Increasing sulphur content, 0<or=x<or=20, leads to an increase in the bond concentration (5.0221-5.556 mol cm^-3), increase in the activation energy of conduction E_sigma (1.33-1.92 eV) and a decrease in both the electrical conductivity, -1g sigma ₂₇₀ (630-7.32) and density, d (4.554-3.866 g cm^-3).

Print publication: Issue 12 (14 December 1981)