N. Chakrabarti et Dp. Bhattacharya, PHONON GROWTH IN A MANY-VALLEY MODEL SEMICONDUCTOR AT LOW LATTICE TEMPERATURES, Czechoslovak journal of Physics, 47(10), 1997, pp. 1037-1041
It is shown how the traditional method of neglecting the energy of aco
ustic phonons and approximating their distribution by the equipartitio
n law leads to significant errors in the phonon growth rate in a many-
valley model semiconductor when the lattice temperature is low.