Two beam Aharonov-Bohm interference in the integer quantum Hall regime

被引：4

作者：

Litvin, L. V. ^{[1
]}

Helzel, A. ^{[1
]}

Tranitz, H. -P. ^{[1
]}

Wegscheider, W. ^{[1
]}

Strunk, C. ^{[1
]}

机构：

[1] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2008年 / 40卷 / 05期

关键词：

electron interference; quantum point contact; quantum Hall effect;

D O I：

10.1016/j.physe.2007.10.060

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We study an electronic Mach-Zehnder interferometer employing the edge channels of a two-dimensional electron gas (2DEG) in the quantum Hall regime and quantum point contacts (QPC) as beam splitters. The linear conductance of the QPC as a function of gate voltage shows resonances superimposed on quantized conductance steps. It was found that the visibility depends strongly on magnetic field and is highest near a filling factor of 1.5 in the interferometer arm. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：1706 / 1708

页数：3

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