Mobility as controlled by the transverse component of phonon wave vector in quantum layers at low temperatures

Abstract

Without resorting to either the Kawaji’s simplified model of interaction with only two-dimensional phonons or to the equipartition approximation for the phonon distribution, the characteristics of the momentum relaxation time of the conduction electrons in a quantized surface layer for interaction with intravalley acoustic phonons have been analysed under the condition of low temperature. The scattering and the mobility characteristics thus obtained for an n-channel (100)-oriented Si inversion layer are apparently quite different from what follows in the traditional framework.