Monte Carlo Study of Hot Electron Transport in Quantum Wells
- 1 April 1988
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 27 (4R) , 563-571
- https://doi.org/10.1143/jjap.27.563
Abstract
Monte Carlo simulations of hot electron transport in AlGaAs/GaAs /AlGaAs quantum wells were carried out in order to clarify the drift velocity overshoot and steady state drift velocity versus the electric-field relation. In the simulations, we took into account the nonparabolic isotropic energy band structures. Results are given for GaAs well widths of 500 and 100 Å and an electron sheet density of 1.0×1012cm-2at 77 K. The drift-velocity overshoot reaches about 7×107cm/s at an electric field of 10 kV/cm in both quantum well structures. A negative differential mobility appears beyond 3 kV/cm in both structures due to electron transfer from the Γ valley to theLvalleys.Keywords
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