Thermal Conductivity of Indium Antimonide at Low Temperatures

Abstract

Thermal conductivity measurements were made on a monocrystalline sample of indium antimonide from 10 to 50°K. Umklapp, isotope, and boundary scattering contributions to the thermal resistivity were calculated from theoretical expressions and then subtracted from the measured value of thermal resistivity. The subsequent deduction of impurity scattering gives a value for the number of point impurities which is compatible with that given by electrical measurements.