Neither a type-I nor a type-II superconductivity in a two-gap system
Superconductivity
2007-05-23 v3 High Energy Physics - Theory
Abstract
We show that in two-gap Ginzburg-Landau model there is a wide range of parameters where the behaviour of the superconductor in external field can not be classified nor as type-I nor as type-II. In this regime the superconductor features a nonmonotonic interaction between vortices (which is attractive at a certain large length scale and repulsive at a shorter length scale). This results in a first order transition into an inhomogeneous state of a mixture of vortex clusters where one of the order parameters is suppressed and domains of two-gap Meissner state.
Keywords
Cite
@article{arxiv.cond-mat/0302218,
title = {Neither a type-I nor a type-II superconductivity in a two-gap system},
author = {Egor Babaev},
journal= {arXiv preprint arXiv:cond-mat/0302218},
year = {2007}
}
Comments
v3: A reference to cond-mat/0411681 for significantly extended and quantitative discussion of these question is added