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Instability of the QHE induced by a nearby two-dimensional-electron system

Jörger, C., Wegscheider, Werner, Dietsche, W. and Klitzing, Klaus von (1998) Instability of the QHE induced by a nearby two-dimensional-electron system. Physica B Condensed Matter 256-25, pp. 499-502.

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We report on the observation of structures in the longitudinal resistance of a single two-dimensional electron gas (2DEG) in a perpendicular magnetic field at filling factor νcongruent with1±0.1. The observed structures can be switched off by depleting a second 2DEG, which is separated from the first by a 30 nm or a 60 nm AlGaAs-barrier, using a gate-electrode. Measurements as a function of ...


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Item type:Article
Date:2 December 1998
Institutions:Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider
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Keywords:Coupled 2DEGs; Drag-effect; Breakdown of QHE
Dewey Decimal Classification:500 Science > 530 Physics
Created at the University of Regensburg:Unknown
Item ID:10888
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