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

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

1999-02-03

arxiv.org/abs/cond-mat/9902040v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 7 ps figures, accepted for publication in Superlattices and Microstructures

Scientific paper

10.1006/spmi.1999.0697

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

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