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Scanning a metallic tip close to a quantum point contact
Pioda, A., Brunner, D., Kicin, S., Ihn, Thomas, Sigrist, Martin, Fuhrer, A., Ensslin, Klaus, Reinwald, Matthias and Wegscheider, Werner (2006) Scanning a metallic tip close to a quantum point contact. Physica E Low-dimensional Systems and Nanostructures 32 (1-2), pp. 167-170.Date of publication of this fulltext: 25 Jan 2010 13:14
Article
DOI to cite this document: 10.5283/epub.12190
Abstract
Low-temperature transport experiments on a quantum point contact under the influence of a scanning gate are reported. The scanning gate is the metallic tip of a scanning force microscope operating at a temperature of 300 mK. In particular, the influence of the scanning tip on conductance resonances observed in the gate-characteristics of the point contact is studied. The strongest conductance ...
Low-temperature transport experiments on a quantum point contact under the influence of a scanning gate are reported. The scanning gate is the metallic tip of a scanning force microscope operating at a temperature of 300 mK. In particular, the influence of the scanning tip on conductance resonances observed in the gate-characteristics of the point contact is studied. The strongest conductance resonances appear to be related to the local potential within the channel of the point contact. As a consequence, the point contact with its conductance resonances can be used as a sensor for the local tip-induced potential.
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Details
| Item type | Article | ||||
| Journal or Publication Title | Physica E Low-dimensional Systems and Nanostructures | ||||
| Publisher: | Elsevier | ||||
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| Volume: | 32 | ||||
| Number of Issue or Book Chapter: | 1-2 | ||||
| Page Range: | pp. 167-170 | ||||
| Date | May 2006 | ||||
| Institutions | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider | ||||
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| Keywords | Scanning probe microscopy; Scanning-gate microscopy; Quantum point contact | ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Unknown | ||||
| Created at the University of Regensburg | Unknown | ||||
| Item ID | 12190 |
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