The thermal conductivity and heat capacity of single-crystal Si under hydrostatic pressure

Abstract

The thermal conductivity lambda and heat capacity rho cP per unit volume of single-crystal Si have been measured under hydrostatic pressure up to 1 GPa at room temperature. The thermal conductivity was found to increase slightly with increasing pressure. For the volume dependence of lambda expressed in terms of the Bridgman parameter g=-( delta (ln lambda )/ delta (ln V))T, the authors obtained g=0.4. The specific heat capacity cP, calculated from their measured rho cP, was found to be constant against pressure.