Non-linear current through a barrier in 1D wires with finite-range interactions

Details Non-linear current through a barrier in 1D wires with finite-range interactions Non-linear current through a barrier in 1D wires with finite-range interactions

1997-04-16

arxiv.org/abs/cond-mat/9704143v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages, RevTeX, 3 Figures included as PS-files, to appear in Solid State Communications

Scientific paper

10.1016/S0038-1098(97)10120-X

The transport properties of a tunnel barrier in a one-dimensional wire are investigated at finite voltages and temperatures. We generalize the Luttinger model to account for finite ranges of the interaction. This leads to deviations from the power law behaviour first derived by Kane and Fisher. At high energies the influence of the interaction disappears and the Coulomb blockade is suppressed. The crossover in the voltage or in the temperature dependence can provide a direct measure for the range of the interaction.

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