Nonlinear Voltage Dependence of the Shot Noise in Mesoscopic Degenerate Conductors with Strong Electron-Electron Scattering

E. G. Mishchenko

doi:10.1103/PhysRevLett.85.4144

Nonlinear Voltage Dependence of the Shot Noise in Mesoscopic Degenerate Conductors with Strong Electron-Electron Scattering

E. G. Mishchenko

Phys. Rev. Lett. 85, 4144 – Published 6 November 2000

Abstract

It is shown that measurements of zero-frequency shot noise can provide information on electron-electron interaction, because the strong interaction results in the nonlinear voltage dependence of the shot noise in metallic wires. This is due to the fact that the Wiedemann-Franz law is no longer valid in the case of considerable electron-electron interaction. The deviations from this law increase the noise power and make it strongly dependent on the ratio of electron-electron and electron-impurity scattering rates.

Received 5 April 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.4144

Authors & Affiliations

E. G. Mishchenko

Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands
and L.D. Landau Institute for Theoretical Physics, Russian Academy of Sciences, Kosygin 2, Moscow 117334, Russia