Mesoscopic Charge Relaxation
Mesoscale and Nanoscale Physics
2009-11-11 v1
Abstract
We consider charge relaxation in the mesoscopic equivalent of an RC circuit. For a single-channel, spin-polarized contact, self-consistent scattering theory predicts a universal charge relaxation resistance equal to half a resistance quantum independent of the transmission properties of the contact. This prediction is in good agreement with recent experimental results. We use a tunneling Hamiltonian formalism and show in Hartree-Fock approximation, that at zero temperature the charge relaxation resistance is universal even in the presence of Coulomb blockade effects. We explore departures from universality as a function of temperature and magnetic field.
Cite
@article{arxiv.cond-mat/0606603,
title = {Mesoscopic Charge Relaxation},
author = {Simon E. Nigg and Rosa Lopez and Markus Buttiker},
journal= {arXiv preprint arXiv:cond-mat/0606603},
year = {2009}
}
Comments
4 pages, 3 figures