Thermal Suppression of Strong Pinning
Superconductivity
2009-10-31 v1
Abstract
We study vortex pinning in layered type-II superconductors in the presence of uncorrelated disorder for decoupled layers. Introducing the new concept of variable-range thermal smoothing, we describe the interplay between strong pinning and thermal fluctuations. We discuss the appearance and analyze the evolution in temperature of two distinct non-linear features in the current-voltage characteristics. We show how the combination of layering and electromagnetic interactions leads to a sharp jump in the critical current for the onset of glassy response as a function of temperature.
Cite
@article{arxiv.cond-mat/9803119,
title = {Thermal Suppression of Strong Pinning},
author = {Orlando S. Wagner and Guido Burkard and Vadim B. Geshkenbein and Gianni Blatter},
journal= {arXiv preprint arXiv:cond-mat/9803119},
year = {2009}
}
Comments
LaTeX 2.09, 4 pages, 2 figures, submitted to Phys. Rev. Lett