Deviatov, E. V. and Dolgopolov, V. T. and Wurtz, A. and Lorke, A. and Wixforth, A. and Wegscheider, Werner and Campman, K. L. and Gossard, A. C. (2005) Topological defects in the edge-state structure in a bilayer electron system. PHYSICAL REVIEW B, 72 (4): 041305. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
We experimentally demonstrate formation of pointlike topological defects in the edge-state structure in the quantum Hall effect regime. By using of a selective population technique, we investigate equilibration processes between the edge states in bilayer electron structures with a high tunneling rate between layers. Unexpected flattening of the I-V curves in a perpendicular magnetic field at a specific filling factor combination and the recovery of the conventional nonlinear I-V characteristics in tilted fields give a strong evidence for the existence of topological defects.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM HALL REGIME; MAGNETIC-FIELD; ELECTROSTATICS; CHANNELS; |
| 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: | 07 May 2021 12:10 |
| Last Modified: | 07 May 2021 12:10 |
| URI: | https://pred.uni-regensburg.de/id/eprint/35964 |
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