MAGNETOTRANSPORT IN 2-DIMENSIONAL LATERAL SUPERLATTICES

被引：124

作者：

LORKE, A ^{[1
]}

KOTTHAUS, JP ^{[1
]}

PLOOG, K ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,W-7000 STUTTGART 80,GERMANY

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.44.3447

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two-dimensional electron systems on GaAs heterostructures subjected to a two-dimensional superlattice potential reveal novel features in the magnetoresistance. Strong density modulation causing the formation of antidots is accompanied by a pronounced magnetoresistance maximum. On weakly modulated systems, oscillations are observed that reflect the commensurability of the cyclotron diameter and the superlattice period. A classical model of ballistic motion resulting in magnetic-field-dependent diffusion is found to explain our and other recent magnetotransport observations.

引用

页码：3447 / 3450

页数：4

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