Non-equilibrium electronic transport and interaction in short metallic nanobridges
Abstract
We have observed interaction effects in the differential conductance of short, disordered metal bridges in a well-controlled non-equilibrium situation, where the distribution function has a double Fermi step. A logarithmic scaling law is found both for the temperature and for the voltage dependence of in all samples. The absence of magnetic field dependence and the low dimensionality of our samples allow us to distinguish between several possible interaction effects, proposed recently in nanoscopic samples. The universal scaling curve is explained quantitatively by the theory of electron-electron interaction in diffusive metals, adapted to the present case, where the sample size is smaller than the thermal diffusion length.
Keywords
Cite
@article{arxiv.cond-mat/0007077,
title = {Non-equilibrium electronic transport and interaction in short metallic nanobridges},
author = {H. B. Weber and R. Häussler and H. v. Löhneysen and J. Kroha},
journal= {arXiv preprint arXiv:cond-mat/0007077},
year = {2009}
}
Comments
Published version, 6 Pages, 6 postscript figures, 1 table