Langenbuch, M and Hennig, R and Suhrke, M and Rossler, U and Albrecht, C and Smet, JH and Weiss, D (2000) Minibands, magnetic breakdown, and novel magnetoresistance oscillations in short-period lateral superlattices. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 6 (1-4). pp. 565-568. ISSN 1386-9477, 1873-1759
Full text not available from this repository. (Request a copy)Abstract
Novel 1/B periodic low-field oscillations observed in the magnetoresistance of short-period lateral superlattices with weak electrostatic modulation are analyzed as being due to the formation of minibands. The energy gaps caused by the weak superlattice potential distort the Fermi circle of the unmodulated two-dimensional electron system (2DES) at the Brillouin-zone boundaries and form smaller closed Fermi contours giving rise to the novel oscillations. We discuss the periodicity of these novel oscillations for one-dimensional (1D) and two-dimensional (2D) lateral modulation and compare their dependence on the electron density with the well-known classical commensurability oscillations. (C) 2000 Elsevier Science B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ONE-DIMENSIONAL SUPERLATTICE; 2-DIMENSIONAL ELECTRON-GAS; miniband; superlattice; magnetoresistance oscillation |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Ulrich Rössler Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 May 2021 06:22 |
| Last Modified: | 21 May 2021 06:22 |
| URI: | https://pred.uni-regensburg.de/id/eprint/42878 |
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