Edge-channel interference controlled by Landau level filling

Litvin, L. V. and Helzel, A. and Tranitz, H. -P. and Wegscheider, W. and Strunk, C. (2008) Edge-channel interference controlled by Landau level filling. PHYSICAL REVIEW B, 78 (7): 075303. ISSN 1098-0121,

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Abstract

We study the visibility of Aharonov-Bohm interference in an electronic Mach-Zehnder interferometer in the integer quantum Hall regime. The visibility is controlled by the filling factor v and is observed only between nu approximate to 2.0 and 1.0, with an unexpected maximum near nu=1.5. Three energy scales extracted from the temperature and voltage dependences of the visibility change in a very similar way with the filling factor, indicating that the different aspects of the interference depend sensitively on the local structure of the compressible and incompressible strips forming the quantum Hall edge channels.

Item Type: Article
Uncontrolled Keywords: QUANTUM HALL REGIME; ELECTRONS;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider
Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk
Depositing User: Dr. Gernot Deinzer
Date Deposited: 28 Oct 2020 06:00
Last Modified: 28 Oct 2020 06:00
URI: https://pred.uni-regensburg.de/id/eprint/30560

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