Feil, T. and Vyborny, K. and Smrcka, L. and Gerl, C. and Wegscheider, W. (2007) Vanishing cyclotron gaps in a two-dimensional electron system with a strong short-period modulation. PHYSICAL REVIEW B, 75 (7): 075303. ISSN 1098-0121,
Full text not available from this repository.Abstract
Magnetotransport in a density-tunable two-dimensional electron gas that is modulated with a strong, atomically precise superlattice potential of a 15 nm period is investigated. For low densities, the system shows typical two-dimensional behavior. In the regime of large densities, however, a quasi-one-dimensional state is entered, in which the cyclotron gaps vanish and the quantum Hall effect breaks down. Both regimes, and the transition between them, are theoretically described in the framework of a quantum-mechanical tight-binding model.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAGNETORESISTANCE OSCILLATIONS; LATERAL SUPERLATTICES; GAS; |
| 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: | 22 Dec 2020 15:08 |
| Last Modified: | 22 Dec 2020 15:08 |
| URI: | https://pred.uni-regensburg.de/id/eprint/33257 |
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