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Composite fermions in magnetic focusing and commensurability experiments

Smet, J. H. ; Weiss, Dieter ; Klitzing, Klaus von ; Fleischmann, R. ; Ketzmerick, R. ; Geisel, T. ; Wegscheider, Werner ; Coleridge, P. T. ; Wasilewski, Z. W. ; Weimann, G.
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Date of publication of this fulltext: 09 Nov 2009 13:12


Abstract

The dynamics of composite fermions in the ballistic transport regime in etched semiconductor nanostructures, imposed on a two-dimensional electron gas, has been investigated around half Landau level filling. The non-uniform electrostatic potential in the vicinity of soft walls in such etched nanostructures has a strong repercussion on the trajectories described by the quasi-particles. A ...

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