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

E. Kogan ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2008, vol. 61, issue 2, 181-185

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. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Keywords: 72.15.Rn Localization effects (Anderson or weak localization) (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1140/epjb/e2008-00045-9

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