Electron Scattering by Impurity Centres in Electron-Hole Liquid

Abstract

The pseudo-neutral nature of the impurity centre embedded in electron-hole liquid in a semiconductor is discussed from the viewpoint of electron scattering. Such a remarkable difference in the scattering cross-section by a factor of \gtrsim130 as observed between donor and acceptor within EHL in silicon is interpreted by the direct analogy with the isolated neutral impurity scattering model rather than by the simplified ionised centre model with proper screening.