Effect of Temperature and Band Nonparabolicity on Density of States of Two Dimensional Electron Gas

Abstract

The analysis of the density of states for electrons in single quantum well, the conduction band nonparabolicity take is account. It is shown that the degree of conduction band nonparabolicity pronounces depending on the energy density of states. With increasing temperature, a step change in the density of states smoothes and at high temperatures is completely blurred. Nonparabolicity dispersion law manifests itself in a wide range of temperatures. Calculations are carried out for the example of the quantum wells in InAs and InSb.

On the Thermodynamics of a Two-Dimensional Electron Gas with Non-Parabolic Dispersion

“…In work [5], it analyzes density of states (DOS) of two-dimensional electron gas in a single quantum well (QW) on the base of narrow-gap semiconductors, InAs and InSb.…”