Investigation of the electric properties of Cu₂S single crystals

Abstract

Abstract Single crystals of p‐Cu 2 S are obtained with a hole concentration of 7.4 × 10 19 cm −3 , a mobility of 25 cm 2 V −1 S −1 , and a thermoelectric power of 90 mV/deg. The electrical conductivity, thermoelectric power and Hall effect are measured between 20 and 600°C. A jump due to structural transformations is observed in the temperature dependence of these parameters at 125 and 480°C. The activation energy is found to have a value of 1.8 eV for the intrinsic range of the conductivity, the value found for the extrinsic range being 0.064 eV.