Circuit Effect On The Current-Voltage Characteristics Of Ultrasmall Tunnel Junctions
Mesoscale and Nanoscale Physics
2009-10-31 v1
Abstract
We have used the method of generating functional in imaginary time to derive the current-voltage characteristics of a tunnel junction with arbitrary tunneling conductance, connected in series with an external impedance and a voltage source. We have shown that via the renormalized charging energy and the renormalized environment conductance, our nonperturbative expressions of the total action can be mapped onto the corresponding perturbative formulas. This provides a straightforward way to go beyond the perturbation theory. For the impedance being a pure resistance, we have calculated the conductance for various voltages and temperatures, and the results agree very well with experiments.
Keywords
Cite
@article{arxiv.cond-mat/9903231,
title = {Circuit Effect On The Current-Voltage Characteristics Of Ultrasmall Tunnel Junctions},
author = {X. H. Wang and K. A. Chao},
journal= {arXiv preprint arXiv:cond-mat/9903231},
year = {2009}
}
Comments
10 pages including 2 figures, to appear in PRB