%0 Journal Article %A Ruiz Valdepenas, L. %A Vélez, M. %A Valdés Bango, F. %A Álvarez Prado, L.M. %A Martin, J. I. %A Navarro Palma, Elena %A Alameda, J.M. %A Vicent López, José Luis %T Double percolation effects and fractal behavior in magnetic/superconducting hybrids %D 2013 %@ 1367-2630 %U https://hdl.handle.net/20.500.14352/35527 %X Perpendicular magnetic anisotropy ferromagnetic/superconducting (FM/SC) bilayers with a labyrinth domain structure are used to study nucleation of superconductivity on a fractal network, tunable through magnetic history. As clusters of reversed domains appear in the FM layer, the SC film shows a percolative behavior that depends on two independent processes: the arrangement of initial reversed domains and the fractal geometry of expanding clusters. For a full labyrinth structure, the behavior of the upper critical field is typical of confined superconductivity on a fractal network. %~