Abstract
We model nonequilibrium transport in a GaAs-AlxGa1-xAs quantum-well structure using an ensemble Monte Carlo simulation of the full multisubband system in which we include electron-electron (e-e) scattering explicitly into the calculation. The e-e scattering cross section is calculated using the Born approximation and introduced into the transient Monte Carlo simulation via a self-scattering technique. This interaction is found to be especially effective in transferring energy between different subbands, thus thermalizing the carriers within a picosecond. The model described herein is applied to the study of laser-excited carriers in a quantum-well system and to the response of such a system to high parallel electric fields. In the case of laser excitation, e-e interaction may dominate the initial evolution, reducing the cascade of carriers via optical-phonon emission.
Original language | English (US) |
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Pages (from-to) | 2578-2588 |
Number of pages | 11 |
Journal | Physical Review B |
Volume | 37 |
Issue number | 5 |
DOIs | |
State | Published - Jan 1 1988 |
Externally published | Yes |
ASJC Scopus subject areas
- Condensed Matter Physics