Quasiclassical negative magnetoresistance of a two-dimensional electron gas in a random magnetic field

被引：6
|
作者：
Bykov, AA [1 ]
Gusev, GM
Leite, JR
Bakarov, AK
Goran, AV
Kudryashev, VM
Toropov, AI
机构：
[1] Russian Acad Sci, Inst Semicond Phys, Novosibirsk 630090, Russia
[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
来源：
PHYSICAL REVIEW B | 2002年 / 65卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.65.035302
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have studied negative magnetoresistance of a nonplanar two-dimensional electron gas. Effectively due to the curved AlGaAs/GaAs interface, electrons see a uniform in-plane magnetic field B as a random magnetic field (RMF). Small additional perpendicular B leads to a negative magnetoresistance predicted by a semiclassical treatment of the RMF problem beyond the relaxation-time approximation, in accordance with our observations.
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页码：1 / 7
页数：7
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