Jörger, C. and Dietsche, W. and Wegscheider, Werner and Klitzing, Klaus von
Drag effect between 2D electron gases: composite fermion and screening effects.
Physica E Low-dimensional Systems and Nanostructures 6 (1-4), pp. 586-589.
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 investigate the coupling at higher filling factors as a function of temperature and parallel magnetic field.