Quantum balance equations for electronic transport in AlxGa1−xAs/GaAs heterojunctions
| ISSN: |
1089-7550
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
We have derived a set of quantum balance equations suitable for the analysis of steady-state electronic transport in AlGaAs/GaAs heterojunctions. Initially, approximate semianalytical expressions for the subband wavefunctions, energy levels, and populations of the two-dimensional electron gas (2DEG) confined at the heterojunction interface are obtained, which are subsequently used in the calculation of the intra- and intervalley correlation functions of the 2DEG. The resulting force and energy balance equations are solved to yield drift velocities and electron temperatures of the electrons as a function of the applied electric field. Remote impurity, longitudinal optical phonon and intervalley phonon scattering are taken into account, as well as the nonparabolicity of the GaAs bandstructure.
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| Type of Medium: |
Electronic Resource
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| URL: |