Commensurability oscillations in a stripe-shaped two-dimensional electron gas

被引:3
|
作者
dos Santos, MT [1 ]
Gusev, GM
Leite, JR
Bykov, AA
Moshegov, NT
Kudryashev, VM
Toropov, AI
Nastaushev, YV
机构
[1] Univ Sao Paulo, Inst Fis, CP 66318, BR-0513970 Sao Paulo, Brazil
[2] Russian Acad Sci, Inst Semicond Phys, Novosibirsk 630090, Russia
基金
巴西圣保罗研究基金会;
关键词
two-dimensional electron gas; magnetoresistance; commensurability oscillations;
D O I
10.1006/spmi.1998.0632
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We have studied the commensurability oscillations for a nonplanar, two-dimensional electron gas which is confined to a surface spatially modulated both in the transverse and longitudinal directions. We show, numerically, that coupling the drift in both directions causes the motion to be chaotic. The channeling tori, responsible for conduction along the stripes, are destroyed and the averaged squared drift velocities decrease. (C) 1999 Academic Press.
引用
收藏
页码:167 / 173
页数:7
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