Limitation of tunneling between edge states by a mesoscopic island in narrow quantum Hall conductors

被引：0

作者：

Liu, ZH ^{[1
]}

Nachtwei, G ^{[1
]}

Gross, J ^{[1
]}

Gerhardts, RR ^{[1
]}

Weis, J ^{[1
]}

von Klitzing, K ^{[1
]}

Eberl, K ^{[1
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70506 Stuttgart, Germany

来源：

PHYSICA B-CONDENSED MATTER | 1998年 / 256卷

关键词：

mesoscopic systems; nonlinear effects; tunneling; quantum Hall effect;

D O I：

10.1016/S0921-4526(98)00563-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We observed current plateaus in the I-V characteristics of Corbino or quasi-Corbino devices with a narrow constriction, containing a mesoscopic island, in the quantum Hall regime. We investigated the features of the current plateaus for different filling factors, island sizes and orientations. A qualitative physical picture including the quasi-elastic inter-Landau-level tunneling and the limitation of tunneling current due to charging of the nonequilibrium electron states around the island is proposed to explain the current plateau phenomenon. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：514 / 518

页数：5

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