Monte-Carlo simulation of the coherent backscattering of electrons in a ballistic system

摘要

We study weak localization effects in the ballistic regime as induced byman-made scatterers. Specular reflection of the electrons off these scatterersresults into backscattered trajectories which interfere with theirtime-reversed path resulting in weak localization corrections to theresistance. Using a semi-classical theory, we calculate the change inresistance due to these backscattered trajectories. We found that the inclusionof the exact shape of the scatterers is very important in order to explain theexperimental results of Katine et al. [Superlattices and Microstructures 20,337 (1996)].