Meier, L. and Fuhrer, A. and Ihn, T. and Ensslin, K. and Wegscheider, Werner and Bichler, M. (2004) Single-electron effects in a coupled dot-ring system. PHYSICAL REVIEW B, 69 (24): 241302. ISSN 2469-9950, 2469-9969
Full text not available from this repository.Abstract
Aharonov-Bohm oscillations are studied in the magnetoconductance of a micron-sized open quantum ring coupled capacitively to a Coulomb-blockaded quantum dot. As the plunger gate of the dot is modulated and tuned through a conductance resonance, the amplitude of the Aharonov-Bohm oscillations in the transconductance of the ring displays a minimum. We demonstrate that the effect is due to a single-electron screening effect, rather than to dephasing. Aharonov-Bohm oscillations in a quantum ring can thus be used for the detection of single charges.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DOUBLE-QUANTUM DOT; DETECTOR; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Jul 2021 05:54 |
| Last Modified: | 20 Jul 2021 05:54 |
| URI: | https://pred.uni-regensburg.de/id/eprint/37617 |
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