Apparent power-law behavior of conductance in disordered quasi-one-dimensional systems.
The dependence of hopping conductance on temperature and voltage for an ensemble of modestly long one-dimensional wires is studied numerically using the shortest-path algorithm. In a wide range of parameters this dependence can be approximated by a power law rather than the usual stretched-exponential form. The relation to recent experiments and prior analytical theory is discussed.
Rodin
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AS
University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA.
Fogler
M M
MM