Chaotic motion of space charge wave fronts in semiconductors under time-independent voltage bias.

@article{Cantalapiedra2001ChaoticMO,
  title={Chaotic motion of space charge wave fronts in semiconductors under time-independent voltage bias.},
  author={I. R. Cantalapiedra and M. Bergmann and L. Bonilla and S. Teitsworth},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2001},
  volume={63 5 Pt 2},
  pages={
          056216
        }
}
A standard drift-diffusion model of space charge wave propagation in semiconductors has been studied numerically and analytically under dc voltage bias. For sufficiently long samples, appropriate contact resistivity, and applied voltage-such that the sample is biased in a regime of negative differential resistance-we find chaos in the propagation of nonlinear fronts (charge monopoles of alternating sign) of electric field. The chaos is always low dimensional, but has a complex spatial structure… Expand

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