A spurious-solution-free envelope function model for quantum-confined wurtzite nanostructures

Abstract

We present a multiband envelope-function model for wurtzite nanostructures based on a rigorous numerical procedure to determine operator ordering and band parameters from nonlocal empirical pseudopotential calculations. The proposed approach leads to numerically stable envelope equations that accurately reproduce full-Brillouin-zone subband dispersions of quantum systems obtained within the linear combination of bulk bands.