A deterministic solver for the transport of the AlGaN/GaN 2D electron gas including hot-phonon and degeneracy effects
- Institute of Theoretical and Computational Physics, Graz University of Technology, Petersgasse 16, A-8010 Graz (Austria)
The transport of the two-dimensional electron gas formed at an AlGaN/GaN heterostructure in the presence of strain polarization fields is investigated. For this purpose, we develop a deterministic multigroup model to the Boltzmann transport equations. The envelope wave functions for the confined electrons are calculated using a self-consistent Poisson-Schroedinger solver. The electron gas degeneracy and hot phonons are included in our transport equations. Numerical results are given for the dependence of macroscopic quantities on the electric field strength and on time and for the electron and phonon distribution functions. We compare our results to those of Monte Carlo simulations and with experiments.
- OSTI ID:
- 20687268
- Journal Information:
- Journal of Computational Physics, Vol. 210, Issue 2; Other Information: DOI: 10.1016/j.jcp.2005.04.021; PII: S0021-9991(05)00249-4; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9991
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
ALUMINIUM COMPOUNDS
BOLTZMANN EQUATION
CHARGED-PARTICLE TRANSPORT
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
DISTRIBUTION FUNCTIONS
ELECTRIC FIELDS
ELECTRON GAS
ELECTRONS
GALLIUM NITRIDES
MONTE CARLO METHOD
PHONONS
POLARIZATION
TRANSPORT THEORY
TWO-DIMENSIONAL CALCULATIONS
WAVE FUNCTIONS