Effects of chiral helimagnets on vortex states in a superconductor
Superconductivity
2016-11-23 v1
Abstract
We have investigated vortex states in chiral helimagnet/superconductor bilayer systems under an applied external magnetic field Happl, using the Ginzburg-Landau equations. Effect of the chiral helimagnet on the superconductor is taken as a magnetic field HCHM, which is perpendicular to the superconductor and oscillates spatially. For Happl = 0 and weak HCHM, there appear pairs of up-and down-vortices. Increasing Happl, down-vortices gradually disappear, and number of up-vortices increases in the large magnetic field region. Then, up-vortices form parallel, triangular, or square structures.
Keywords
Cite
@article{arxiv.1605.05467,
title = {Effects of chiral helimagnets on vortex states in a superconductor},
author = {Saoto Fukui and Masaru Kato and Yoshihiko Togawa},
journal= {arXiv preprint arXiv:1605.05467},
year = {2016}
}
Comments
7 pages, 13 figures