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

Litvin, Leonid and Helzel, Andreas and Tranitz, Hans-Peter and Wegscheider, Werner and Strunk, Christoph (2008) Two beam Aharonov–Bohm interference in the integer quantum Hall regime. Physica E Low-dimensional Systems and Nanostructures 40 (5), pp. 1706-1708.

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Abstract

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.

Item Type:Article
Institutions: Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk
Identification Number:
ValueType
10.1016/j.physe.2007.10.060DOI
Classification:
NotationType
73.23.Ad; 73.63.NmPACS
Keywords:Electron interference; Quantum point contact; Quantum Hall effect
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Owner:Martin Kaiser
Deposited On:01 Feb 2010 13:58
Last Modified:21 Jul 2011 00:18
Item ID:12474
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