E. V. Deviatov, V. T. Dolgopolov, A. Lorke, W. Wegscheider, A. D. Wieck, “Experimental investigation of the edge states structure at fractional filling factors”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2005, Volume 82, Issue 8,Pages <nobr>598

This article is cited in 7 papers

CONDENSED MATTER

Experimental investigation of the edge states structure at fractional filling factors

E. V. Deviatov^a, V. T. Dolgopolov^a, A. Lorke^b, W. Wegscheider^c, A. D. Wieck^d

^a Institute of Solid State Physics RAS, Chernogolovka, Moscow District 142432, Russia
^b Laboratorium für Festkörperphysik, Universität Duisburg-Essen, Lotharstr. 1, D-47048 Duisburg, Germany
^c Institut für Angewandte und Experimentelle Physik, Universität Regensburg, 93040 Regensburg, Germany
^d Lehrstuhl für Angewandte Festkörperphysik, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany

Abstract: We experimentally study electron transport between edge states in the fractional quantum Hall effect regime. We find an anomalous increase of the transport across the 2/3 incompressible fractional stripe in comparison with theoretical predictions for the smooth edge potential profile. We interpret our results as a first experimental demonstration of the intrinsic structure of the incompressible stripes arising at the sample edge in the fractional quantum Hall effect regime.

PACS: 71.30.+h, 73.40.Qv

Received: 22.09.2005

Language: English