2000/07/31 by Heiko B. Weber, H. B. Weber, R. Häussler +3 · 3 citations
Engineering · Mathematics · Physics and Astronomy · #Condensed matter physics #Conductance #Diffusion #Electron #Logarithm #Materials science #Mathematics #Molecular Junctions and Nanostructures #Non-equilibrium thermodynamics #Physics #Quantum and electron transport phenomena #Quantum mechanics #Scaling #Surface and Thin Film Phenomena #Thermal conduction #cond-mat.dis-nn #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.63.165426
published as Phys. Rev. B 63, 165426 (2001) · Published version, 6 Pages, 6 postscript figures, 1 table
openalex publication_date 2001/04/05 · arxiv created 2001/05/21 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We have observed interaction effects in the differential conductance G of short, disordered metal bridges in a well-controlled nonequilibrium 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 G 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.