The prefactor for screened Mott hopping

Details The prefactor for screened Mott hopping The prefactor for screened Mott hopping

2002-05-09

arxiv.org/abs/cond-mat/0205193v2

Physics

Condensed Matter

Strongly Correlated Electrons

3 pages, 3 figures

Scientific paper

The universal curve for the crossover from ES to screened Mott hopping is used to explain a reported discrepancy between the hopping conductivity prefactors in the two regimes. The prefactor in the screened Mott hopping regime is shown to vary exponentially with the inverse of the localization length in good agreement with recent experimental results. The constant C associated with ES hopping is shown to be equal to its theoretical value of 6.2.

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