Electron-electron scattering and the propagation of electron beams in a two-dimensional electron gas

被引:1
|
作者
Buhmann, H
Predel, H
Molenkamp, LW
Gurzhi, RN
Kopeliovich, AI
Kalinenko, AN
Yanovsky, AV
机构
[1] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany
[2] Kharkov Low Temp Phys & Engn Inst, UA-310164 Kharkov, Ukraine
来源
PHYSICA E | 2000年 / 6卷 / 1-4期
关键词
electron-electron scattering;
D O I
10.1016/S1386-9477(99)00163-0
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Experimental studies of electron-beam propagation in a degenerate 2DEG in a GaAs-(Al,Ga)As heterostructure are presented for a wide range of injection energies, 0 < E less than or equal to E-F The electron beam is injected :Ind detected in the 2DEG via electrostatically defined quantum point-contacts with typical distances of 3.4 mu m. Energy-dependent beam injection is used to reveal the characteristics of the electron-beam propagation. Considering the specific character for electron-electron scattering events in 2D systems Linearized Boltzmann equations could be used to model the experimental observations. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:310 / 313
页数:4
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