Defect-unbinding and the Bose-glass transition in layered superconductors
Superconductivity
2009-10-31 v1 Statistical Mechanics
Abstract
The low-field Bose-glass transition temperature in heavy-ion irradiated Bi_2Sr_2CaCu_2O_8+d increases progressively with increasing density of irradiation-induced columnar defects, but saturates for densities in excess of 1.5 x10^9 cm^-2. The maximum Bose-glass temperature corresponds to that above which diffusion of two-dimensional pancake vortices between different vortex lines becomes possible, and above which the ``line-like'' character of vortices is lost. We develop a description of the Bose-glass line that is in excellent quantitative agreement with the experimental line obtained for widely different values of track density and material parameters.
Keywords
Cite
@article{arxiv.cond-mat/0003299,
title = {Defect-unbinding and the Bose-glass transition in layered superconductors},
author = {C. J. van der Beek and M. Konczykowski and A. V. Samoilov and N. Chikumoto and S. Bouffard and M. V. Feigel'man},
journal= {arXiv preprint arXiv:cond-mat/0003299},
year = {2009}
}
Comments
4 pages, 4 figures, submitted to Phys. Rev. Lett