We employ the Wigner function formalism to simulate partially coherent, dissipative electron transport in biased semiconductor superlattices. We introduce a model collision integral with terms that describe energy dissipation, momentum relaxation, and the decay of spatial coherences (localization). Based on a particle-based solution to the Wigner transport equation with the model collision integral, we simulate quantum electronic transport at 10 K in a GaAs/AlGaAs superlattice and accurately reproduce its current density vs field characteristics obtained in experiment.
CITATION STYLE
Jonasson, O., & Knezevic, I. (2015). Dissipative transport in superlattices within the Wigner function formalism. Journal of Computational Electronics, 14(4), 879–887. https://doi.org/10.1007/s10825-015-0734-9
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