ELECTRON-DENSITY CORRELATION-FUNCTION OF THE 2-DIMENSIONAL ELECTRON-GAS IN ALXGA1-XAS/GAAS HETEROJUNCTIONS

被引:9
作者
MAGNUS, W
SALA, C
DEMEYER, K
机构
[1] Advanced Semiconductor Processing Division, Process and Device Modeling Group, Interuniversity Microelectronics Center (IMEC), B-3030 Leuven
来源
PHYSICAL REVIEW B | 1990年 / 41卷 / 08期
关键词
D O I
10.1103/PhysRevB.41.5197
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have obtained an expression for the density correlation function of a two-dimensional electron gas (2D EG) confined in an AlxGa1-xAs/GaAs heterojunction, in which we assume the nonparabolicity of the band structure to be governed by a Kane-like dispersion relation. We have further demonstrated that the insertion of this correlation function in the momentum and energy balance equations derived by Lei and Ting for parabolic band structures can be justified on physical grounds, leading to an improved description of high-field transport in III-V compound heterojunctions. © 1990 The American Physical Society.
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页码:5197 / 5201
页数:5
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