On the Electron Gas Energy Relaxation Mechanisms in n‐Type InSb at Helium Temperatures

The relaxation time of the electrical conductivity and the non‐linearity coefficient β in n‐type InSb in the temperature range from 1.8 to 4.1°K are studied as a function of power supplied to the sample from a d.c. source. The results are interpreted by considering energy losses by acoustic piezoelectric and deformation‐potential scattering and by optical polar scattering. The constants of piezoelectric and deformation potentials are estimated.