Electron kinetics in isolated mesoscopic rings driven out of equilibrium

Details Electron kinetics in isolated mesoscopic rings driven out of equilibrium Electron kinetics in isolated mesoscopic rings driven out of equilibrium

2002-06-07

arxiv.org/abs/cond-mat/0206109v1

Phys.Rev.B., v.67, 155310 (2003)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages, 4 figures, LaTeX

Scientific paper

10.1103/PhysRevB.67.155310

Kinetic theory of nonlinear current response to an external field is developed for mesoscopic normal metal rings threaded by a magnetic flux. General expressions for direct current (DC) are derived for a non-equilibrium regime. These expressions describe simultaneously a contribution to DC made by a non-equilibrium (external) field, as well as the contribution caused by interaction with intrinsic fields. Contributions of electron-electron and electron-phonon interactions to the direct current in a non-equilibrium systems are studied. The kinetic equation for electrons in a disordered metal ring is solved with taking into account the Coulomb and electron-phonon interactions. This gives an estimate of an overheating of the pumped electron system.

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