Electrostatics of edge channels

D. B. Chklovskii, Boris I Shklovskii, L. I. Glazman

Research output: Contribution to journalArticlepeer-review

788 Scopus citations

Abstract

We propose a quantitative electrostatic theory of the gate-induced confinement of two-dimensional electron gas (2DEG) in the quantum Hall regime. The self-consistent electrostatic potential in the region occupied by 2DEG changes in a steplike manner due to the formation of alternating strips of compressible and incompressible electron liquids. We obtain the dependence of positions and widths of these strips on the filling factor. Incompressible strips are shown to be much more narrow than the compressible ones. The relationship between the widths of the adjacent compressible and incompressible strips is found to be universal: It does not depend on the strip number, magnetic field, or gate voltage. Our theory enables us to explain results obtained in experimental studies of edge-state equilibration.

Original languageEnglish (US)
Pages (from-to)4026-4034
Number of pages9
JournalPhysical Review B
Volume46
Issue number7
DOIs
StatePublished - 1992

Fingerprint

Dive into the research topics of 'Electrostatics of edge channels'. Together they form a unique fingerprint.

Cite this