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Quasi-localization and quasi-mobility edge for light atoms mixed with heavy ones

  • Mesoscopic and Nanoscale Systems
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Abstract.

A mixture of light and heavy atoms is considered. We study the kinetics of the light atoms, scattered by the heavy ones, the latter undergoing slow diffusive motion. In three-dimensional space we claim the existence of a crossover region (in energy), which separates the states of the light atoms with fast diffusion and the states with slow diffusion; the latter is determined by the dephasing time. For the two dimensional case we have a transition between weak localization, observed when the dephasing length is less than the localization length (calculated for static scatterers), and strong localization observed in the opposite case.

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  1. Physics Department, Bar Ilan University, Jack and Pearl Resnick Institute, 52900, Ramat Gan, Israel

    E. Kogan

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  1. E. Kogan
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Kogan, E. Quasi-localization and quasi-mobility edge for light atoms mixed with heavy ones. Eur. Phys. J. B 61, 181–185 (2008). https://doi.org/10.1140/epjb/e2008-00045-9

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