A self-consistent microscopic model of Coulomb interaction in a bilayer system as an origin of Drag Effect Phenomenon
Krishna, P. M.
Physica E : Low-Dimensional Systems and Nanostructures
1169 - 1171
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In this work we implement the self-consistent Thomas-Fermi model that also incorporates a local conductivity model to an electron-electron bilayer system, in order to describe novel magneto-transport properties such as the Drag Phenomenon. The model can successfully account for the poor screening of the potential within the incompressible strips and its impact on the inter-layer Coulomb interaction. An externally applied current in the active layer results in the tilting of the Landau levels and built-up of a Hall potential across the layer, which, in turn, induces a tilted potential profile in the passive layer as well. We investigate the effect of the current intensity, temperature, magnetic field, and unequal density of layers on the self-consistent density and potential profiles of the bilayer system.
Quantum hall effect
Semiconductor quantum dots
Drag effect phenomenon
Quantum hall effect
Published Version (Please cite this version)http://dx.doi.org/10.1016/j.physe.2007.08.150
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