Mitzkus, Christian and Wegscheider, Werner and Umanski, Vladimir and Eberl, Karl and Weiss, Dieter (2008) Interaction-induced temperature-dependent switching of the phase of commensurability oscillations in a one-dimensional lateral superlattice. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 245 (2). pp. 303-308. ISSN 0370-1972,
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We study magnetotransport of a two-dimensional electron system (2DES) in the presence of an additional one-dimensioinal potential modulation. The commensurability oscillations observed in such a density modulated 2DES show a temperature dependent switching of their phase in the case when the modulation pattern is orientated parallel to the current. This behaviour is compared with a recent theory on the consequences of electron electron interaction by Gornyi and Mirlin [Phys. Rev. B69, 45313,(2004)]. The theory predicts a temperature dependent mixing of the components of the resistivity tensor, which explains the phase switching as an overlapping of two kinds of commensurability oscillations. Good qualitative agreement between experiment and theory os found.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 2-DIMENSIONAL ELECTRON-GAS; MAGNETORESISTANCE OSCILLATIONS; SCATTERING; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 10 Nov 2020 07:30 |
| Last Modified: | 10 Nov 2020 07:30 |
| URI: | https://pred.uni-regensburg.de/id/eprint/31476 |
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