Simple electron-electron scattering in non-equilibrium Green's function simulations

WINGE, David O., FRANCKIÉ, Martin, VERDOZZI, Claudio, WACKER, Andreas and PEREIRA, Mauro (2016). Simple electron-electron scattering in non-equilibrium Green's function simulations. Journal of Physics: Conference Series, 696.

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In this work we include electron-electron interaction beyond Hartree-Fock level in our non-equilibrium Green's function approach by a crude form of GW through the Single Plasmon Pole Approximation. This is achieved by treating all conduction band electrons as a single effective band screening the Coulomb potential. We describe the corresponding self-energies in this scheme for a multi-subband system. In order to apply the formalism to heterostructures we discuss the screening and plasmon dispersion in both 2D and 3D systems. Results are shown for a four well quantum cascade laser with different doping concentration where comparisons to experimental findings can be made.

Item Type: Article
Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Electronic Materials and Sensors Research Group
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Depositing User: Helen Garner
Date Deposited: 03 Jun 2016 13:51
Last Modified: 18 Mar 2021 07:48

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