Dependence of Vortex States in Superconductors on a Chiral Helimagnet and an Applied Magnetic Field

Saoto Fukui; Masaru Kato; Yoshihiko Togawa

doi:10.1016/j.physc.2016.05.020

paper

Dependence of Vortex States in Superconductors on a Chiral Helimagnet and an Applied Magnetic Field

arXiv:1605.05637 · doi:10.1016/j.physc.2016.05.020

Abstract

We study effects of a chiral helimagnet (CHM) on vortex states in a superconductor, solving the Ginzburg-Landau equations in a chiral helimagnet/superconductor bilayer system. We found that vortices form a periodically modulated triangular lattice, because the magnetic field from the chiral helimagnet $H_{C H M}$ oscillates spatially. An increase of a critical current is expected, because vortices are pinned by the $H_{C H M}$ .

5 pages, 7 figures, ISS2015, submitted to Physica C