REAL-SPACE TRANSFER OSCILLATIONS IN COUPLED QUANTUM WIRES

被引：1
|
作者：
UTECHT, C
SCHOLL, E
机构：
[1] Institut für Theoretische Physik, Technische Universität Berlin, 10623 Berlin
来源：
JOURNAL OF APPLIED PHYSICS | 1993年 / 74卷 / 05期
关键词：
D O I：
10.1063/1.354496
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A model for nonlinear parallel transport in GaAs/n-AlxGa1-xAs quantum wires coupled via an external load circuit is developed. It takes into account the nonlinear dynamics of electric-field induced real-space electron transfer from GaAs to AlGaAs and delayed dielectric relaxation of the interface potential barrier. Quantum size effects are considered in the form of confining potentials. In the case of two symmetric quantum wires symmetric and asymmetric self-generated current oscillations of several hundred GHz are predicted. The coupling of two nonsymmetric wires yields quasi-periodic oscillations.
引用
收藏
页码：3602 / 3604
页数：3
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