M¨¹ller, G and Weiss, Dieter and Klitzing, K and Streda, P and Weimann, G (1995) The Quantum Hall Effect in a One-Dimensional Lateral Superlattice: Nearly Dissipationless Transport Across High Potential Barriers. Physical Review B 51, p. 10236.
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We have investigated strongly modulated one- dimensional lateral superlattices in the quantum Hall regime. Although the modulation amplitude is comparable to the Fermi energy in the system, giving rise to zero magnetic field square resistances of up to 75 k¦¸, we observe nearly dissipationless transport across the barriers at integer filling factors. While the Hall resistance displays quantized plateaus, there are no gaps in the Landau level density of states. The experimental findings can be explained in terms of B¨¹ttiker¡¯s edge channel model involving the high aspect ratio of the barriers.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss|
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||25 May 2009 13:20|
|Last Modified:||05 Aug 2009 13:57|