Non-Fermi liquid behavior in transport across carbon nanotube quantum dots
Strongly Correlated Electrons
2007-05-23 v1 Mesoscale and Nanoscale Physics
Abstract
A low energy-theory for non-linear transport in finite-size single-wall carbon nanotubes, based on a microscopic model for the interacting pz electrons and successive bosonization, is presented. Due to the multiple degeneracy of the energy spectrum diagonal as well as off-diagonal (coherences) elements of the reduced density matrix contribute to the nonlinear transport. A four-electron periodicity with a characteristic ratio between adjacent peaks, as well as nonlinear transport features, in quantitative agreement with recent experiments, are predicted.
Cite
@article{arxiv.cond-mat/0606214,
title = {Non-Fermi liquid behavior in transport across carbon nanotube quantum dots},
author = {Leonhard Mayrhofer and Milena Grifoni},
journal= {arXiv preprint arXiv:cond-mat/0606214},
year = {2007}
}
Comments
5 pages, 3 figures