Precise asymptotics for a variable-range hopping model
arXiv:cond-mat/0703018 · doi:10.1143/PTPS.166.136
Abstract
For a system of localised electron states the DC conductivity vanishes at zero temperature, but localised electrons can conduct at finite temperature. Mott gave a theory for the low-temperature conductivity in terms of a variable-range hopping model, which is hard to analyse. Here we give precise asymptotic results for a modified variable-range hopping model proposed by S. Alexander [Phys. Rev. B 26, 2956 (1982)].
7 pages, 2 figures