Structure of a single sharp quantum Hall edge probed by momentum-resolved tunneling

M. Huber*, M. Grayson, M. Rother, W. Biberacher, W. Wegscheider, G. Abstreiter

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Momentum-resolved magnetotunneling spectroscopy is performed at a single sharp quantum Hall (QH) edge to probe the structure of integer QH edge modes. An epitaxially overgrown cleaved edge is shown to realize the sharp-edge limit with interchannel distances smaller than both the magnetic length and the Bohr radius where the Chklovskii soft-edge picture is no longer valid. The line shape of principal conductance peaks is explained, and an edge filling factor is determined from the peak position. A step in the dispersion is attributed to fluctuations in the QH ground energy.

Original languageEnglish (US)
Article number016805
JournalPhysical review letters
Volume94
Issue number1
DOIs
StatePublished - Jan 14 2005

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Structure of a single sharp quantum Hall edge probed by momentum-resolved tunneling'. Together they form a unique fingerprint.

Cite this