Electrical Conductivity and Thermoelectric Effect in Single-Crystal TiC

Abstract

Single-crystal TiC exhibits a positive temperature coefficient of resistivity with a resistivity in the [100] direction of 200±20 μohm cm. The thermoelectric power ΔV/ΔT referenced against copper at room temperature is 7.8±0.6 μv/°C and indicates n-type conduction. No hydrostatic piezoresistivity was observed. The predominant cleavage plane for single-crystal TiC is {100}. It can be concluded from P vs T and thermoelectric data that single-crystal TiC has metallic-type conduction, and the predominant charge carriers are electrons.