Resistive transition in $\pi$-junction superconductors
Superconductivity
2009-11-10 v1 Disordered Systems and Neural Networks
Abstract
The resistivity behavior of inhomogeneous superconductors with random junctions, as in high- materials with d-wave symmetry, is studied by numerical simulation of a three-dimensional XY spin glass model. Above a concentration threshold of antiferromagnetic couplings, a resistive transition is found in the chiral-glass phase at finite temperatures and the critical exponents are determined from dynamic scaling analysis. The power-law exponent for the nonlinear contribution found in recent resistivity measurements is determined by the dynamic critical exponent of this transition.
Cite
@article{arxiv.cond-mat/0311083,
title = {Resistive transition in $\pi$-junction superconductors},
author = {Enzo Granato},
journal= {arXiv preprint arXiv:cond-mat/0311083},
year = {2009}
}
Comments
4 pages, 3 figures, to appear in Phys. Rev. B