Multiband description of the optical properties of zincblende nitride quantum dots

  • Schulz S
  • Mourad D
  • Czycholl G
  • 9


    Mendeley users who have this article in their library.
  • 17


    Citations of this article.


We use the single-particle energies and wave functions calculated from an effective bond-orbital model and a microscopic empirical tight-binding model in combination with the configuration-interaction scheme to calculate the optical properties of cubic GaN/AlN quantum dots. Special attention is paid to the possible influence of the weak spin-orbit coupling on the optical spectra. The results are compared to recent experimental data. In agreement with the experiments, we find a strong polarization anisotropy of the excitonic transitions in the microscopic empirical tight-binding model, while the effective bond-orbital model misses this anisotropy in the absence of a piezoelectric field and an atomistic strain field. This missing anisotropy can be attributed to the artificially increased symmetry of the combined system of quantum dot geometry and underlying lattice structure.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Stefan Schulz

  • Daniel Mourad

  • Gerd Czycholl

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free