Vortex Lattice Structure of Fulde-Ferrell-Larkin-Ovchinnikov Superconductors
Abstract
In superconductors with singlet pairing, the inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state is expected to be stabilized by a large Zeeman splitting. We develop an efficient method to evaluate the Landau-Ginzburg free energies of FFLO-state vortex lattices and use it to simplify the considerations that determine the optimal vortex configuration at different points in the phasediagram. We demonstrate that the order parameter spatial profile is completely determined, up to a uniform translation, by its Landau level index n and the vortex Lattice structure and derive an explicit expression for the order parameter spatial profile that can be used to determine n from experimental data.
Keywords
Cite
@article{arxiv.cond-mat/0404580,
title = {Vortex Lattice Structure of Fulde-Ferrell-Larkin-Ovchinnikov Superconductors},
author = {Kun Yang and A. H. MacDonald},
journal= {arXiv preprint arXiv:cond-mat/0404580},
year = {2009}
}
Comments
6 pages with one embedded color figure. Minor changes. Final version as published