Motion of wave fronts in semiconductor superlattices.

  title={Motion of wave fronts in semiconductor superlattices.},
  author={A. Carpio and L. Bonilla and G. Dell'Acqua},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={64 3 Pt 2},
An analysis of wave front motion in weakly coupled doped semiconductor superlattices is presented. If a dimensionless doping is sufficiently large, the superlattice behaves as a discrete system presenting front propagation failure and the wave fronts can be described near the threshold currents J(i) (i=1,2) at which they depin and move. The wave front velocity scales with current as |J-J(i)|(1/2). If the dimensionless doping is low enough, the superlattice behaves as a continuum system and wave… Expand

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