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Structure of a Single Sharp Quantum Hall Edge Probed by Momentum-Resolved Tunneling
Huber, Michael, Grayson, M.
, Rother, Martin, Biberacher, W., Wegscheider, Werner and Abstreiter, Gerhard
(2005)
Structure of a Single Sharp Quantum Hall Edge Probed by Momentum-Resolved Tunneling.
Physical Review Letters 94 (1), 016805.
Date of publication of this fulltext: 11 Jan 2010 13:33
Article
DOI to cite this document: 10.5283/epub.11959
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distances smaller than both the magnetic length and the Bohr radius where the Chklovskii soft-edge picture is no longer valid.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 ...
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distances smaller than both the magnetic length and the Bohr radius where the Chklovskii soft-edge picture is no longer valid.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.
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| Item type | Article | ||||
| Journal or Publication Title | Physical Review Letters | ||||
| Publisher: | AMERICAN PHYSICAL SOC | ||||
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| Place of Publication: | COLLEGE PK | ||||
| Volume: | 94 | ||||
| Number of Issue or Book Chapter: | 1 | ||||
| Page Range: | 016805 | ||||
| Date | 14 January 2005 | ||||
| Institutions | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider | ||||
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| Classification |
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| Keywords | SPECTROSCOPY; ELECTROSTATICS; BEHAVIOR; LIQUIDS; SYSTEMS; STATES; | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Unknown | ||||
| Created at the University of Regensburg | Unknown | ||||
| Item ID | 11959 |
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