Nonequilibrium Green's function approach to resonant transport in semiconductor superlattices

被引：1
|
作者：
Mori, N
Patanè, A
Eaves, L
机构：
[1] Osaka Univ, Dept Elect Engn, Suita, Osaka 5650871, Japan
[2] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2004年 / 21卷 / 2-4期
关键词：
superlattice; GaAs/AlAs heterostructure; electron-phonon interaction;
D O I：
10.1016/j.physe.2003.11.114
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We present a theoretical and computational investigation of resonant electron transport in GaAs/AlAs superlattices in the presence of electric and magnetic fields applied along the direction perpendicular to the interfaces. Our calculation focuses on the form of the velocity-electric-field curve in the region of increasing Wannier-Stark localization. We find that the current flow is strongly modulated by a subtle interplay of Stark cyclotron resonance and optical-phonon resonance. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：717 / 721
页数：5
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