RELAXATION OF HOT-ELECTRON DISTRIBUTIONS IN GAAS

被引：7
作者：
KIM, CS
SHIZGAL, B
机构：
[1] Department of Chemistry, University of British Columbia, Vancouver
来源：
PHYSICAL REVIEW B | 1991年 / 44卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.44.2969
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The field-free equilibration of optically excited nonequilibrium hot electrons is studied theoretically with use of the Boltzmann kinetic equation. The analysis is limited to the situation where the longitudinal-optical-phonon scattering mechanism is dominant. The relaxation of the electron-energy-distribution function and of the average electron energy are investigated numerically for pulsed initial conditions with account taken of the exact collision integral within a single-parabolic-band model. It is shown that the energy dependence of the relevant scattering rate plays an important role in determining the relaxation of the hot-electron distribution.
引用
收藏
页码：2969 / 2978
页数：10
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