Reentrant vortex lattice transformation in four-fold symmetric superconductors
Superconductivity
2009-11-07 v1
Abstract
The physics behind the rhombicsquarerhombic flux line lattice transformation in increasing fields is clarified on the basis of Eilenberger theory. We demonstrate that this reentrance observed in LuNiBC is due to intrinsic competition between superconducting gap and Fermi surface anisotropies. The calculations reproduce not only it but also predict yet not found lock-in transition to a square lattice with different orientation in higher field. In view of physical origin given, this sequence of transitions is rather generic to occur in four-fold symmetric superconductors.
Keywords
Cite
@article{arxiv.cond-mat/0205245,
title = {Reentrant vortex lattice transformation in four-fold symmetric superconductors},
author = {N. Nakai and P. Miranović and M. Ichioka and K. Machida},
journal= {arXiv preprint arXiv:cond-mat/0205245},
year = {2009}
}
Comments
5 pages, 4 figures,submitted to Phys. Rev. Lett