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Drag effect between 2D electron gases: composite fermion and screening effects

Jörger, C. ; Dietsche, W. ; Wegscheider, Werner ; Klitzing, Klaus von
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Date of publication of this fulltext: 30 Nov 2009 13:18


Abstract

We report on experimental data of the drag effect between 2D electron gases confined to two separate layers in a strong perpendicular magnetic field. We investigate the coupling at Landau level filling factor Image as a function of temperature, carrier densities of the two layers and distance between them. A good agreement is found with a recent theory based on Coulomb interaction. Furthermore we ...

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