Smet, J. H. and von Klitzing, Klaus and Weiss, Dieter and Wegscheider, Werner (1998) dc transport of composite fermions in weak periodic potentials. PHYSICAL REVIEW LETTERS, 80 (20). pp. 4538-4541. ISSN 0031-9007, 1079-7114
Full text not available from this repository.Abstract
dc transport through one-and two-dimensional periodic modulations of density has been investigated near half filling of the lowest Landau level. For both geometries, the modulation, which is rather weak for electrons at small magnetic fields, triggers an unexpectedly strong response for composite fermions. The dramatic effect observed in 1D gratings is best described as a large positive magnetoresistance emanating from the half filled state. 2D gratings display four peaks similar to dimensional resonances observed in antidot arrays despite the small modulation amplitude.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 2-DIMENSIONAL ELECTRON-GAS; MAGNETIC-FIELD; MAGNETORESISTANCE OSCILLATIONS; LANDAU-LEVEL; SUPERLATTICE; SURFACE; ARRAY |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Feb 2023 07:49 |
| Last Modified: | 24 Feb 2023 07:49 |
| URI: | https://pred.uni-regensburg.de/id/eprint/49806 |
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