Valence-band effective masses of GaAs

Abstract

The density-of-states effective masses for the heavy-hole, light-hole, and split-off valence bands of GaAs have been calculated as a function of energy for each band. The calculations are based on a full k⋅p theory with the most recent values used for the matrix elements. Provision has been made for the effect of the split-off energy on the matrix elements of the split-off band. The results show important nonparabolicities which should be taken into account in modeling the valence band, and rational polynomial fits have been made for ease of computation.