Nonlinear I-V Characteristics of a Mesoscopic Conductor
Condensed Matter
2009-10-31 v1
Abstract
We present a general theoretical formulation, based on nonequilibrium Green's functions, for nonlinear DC transport in multi-probe mesoscopic conductors. The theory is gauge invariant and is useful for the predictions of current-voltage characteristics and the nonequilibrium charge pile-ups inside the conductor. We have provided a detailed comparison between the gauge invariant scattering matrix theory and our theory. We have also given several examples where the I-V curve can be obtained analytically. The effects of exchange and correlation have been considered explicitly.
Keywords
Cite
@article{arxiv.cond-mat/9902307,
title = {Nonlinear I-V Characteristics of a Mesoscopic Conductor},
author = {Baigeng Wang and Jian Wang and Hong Guo},
journal= {arXiv preprint arXiv:cond-mat/9902307},
year = {2009}
}