| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1547952 | Physica E: Low-dimensional Systems and Nanostructures | 2006 | 4 Pages |
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 300Â 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.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
A. Pioda, D. Brunner, S. Kicin, T. Ihn, M. Sigrist, A. Fuhrer, K. Ensslin, M. Reinwald, W. Wegscheider,