Vortex pinning in a type-II superconducting Pb film covering a Co/Pt multilayer with perpendicular magnetic anisotropy is investigated. Different stable magnetic domain patterns like band and bubble domains can be created in the Co/Pt multilayer, clearly influencing the vortex pinning in the superconducting Pb layer. Most effective pinning is observed for the bubble domain state. We demonstrate that the pinning properties of the superconductor/ferromagnet bilayer can be controlled by tuning the size, density and magnetization direction of the bubbles.
@article{arxiv.cond-mat/0205470,
title = {Magnetic-domain-controlled vortex pinning in a superconductor/ferromagnet bilayer},
author = {M. Lange and M. J. Van Bael and V. V. Moshchalkov and Y. Bruynseraede},
journal= {arXiv preprint arXiv:cond-mat/0205470},
year = {2009}
}