Current-voltage scaling of a Josephson-junction array at irrational frustration
Abstract
Numerical simulations of the current-voltage characteristics of an ordered two-dimensional Josephson junction array at an irrational flux quantum per plaquette are presented. The results are consistent with an scaling analysis which assumes a zero temperature vortex glass transition. The thermal correlation length exponent characterizing this transition is found to be significantly different from the corresponding value for vortex-glass models in disordered two-dimensional superconductors. This leads to a current scale where nonlinearities appear in the current-voltage characteristics decreasing with temperature roughly as in contrast with the behavior expected for disordered models.
Keywords
Cite
@article{arxiv.cond-mat/9608091,
title = {Current-voltage scaling of a Josephson-junction array at irrational frustration},
author = {Enzo Granato},
journal= {arXiv preprint arXiv:cond-mat/9608091},
year = {2009}
}
Comments
RevTex 3.0, 12 pages with Latex figures, to appear in Phys. Rev. B 54, Rapid. Comm