Negative parabolic magneto-resistance induced by electron-electron interaction in two-dimensional electron gas with diffusive transport

被引：4
|
作者：
Renard, V
Kvon, ZD
Estibals, O
Portal, JC
Toropov, AI
Bakarov, AK
Kostrikin, MN
机构：
[1] MPI FKF, CNRS, GHMFL, F-38042 Grenoble 9, France
[2] Russian Acad Sci, Inst Semicond Phys, Novosibirsk 630090, Russia
[3] INSA, F-31077 Toulouse, France
[4] Inst Univ France, Toulouse, France
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2004年 / 22卷 / 1-3期
关键词：
electron-electron interaction; diffusive regime;
D O I：
10.1016/j.physe.2003.12.013
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We experimentally study the parabolic negative magneto-resistance (NMR) in high density (N-s > 10(12) cm(-2)) and low mobility (mu < 10(3) cm(2)/V s) two-dimensional (2D) electron gas realized by delta-doping a narrow (5 nm) AlGaAs/GaAs/AlGaAs quantum well. We show that the parabolic NMR in this 2DEG is well described by the theory which connects the parabolic NMR to the existing quantum logarithmic correction to the conductivity of the 2D electron system in the case of the diffusive transport. (C) 2003 Elsevier B.V. All rights reserved.
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页码：328 / 331
页数：4
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