Skyrmion-like states in multilayer exchange coupled ferromagnetic   nanostructures with distinct anisotropy directions
  We report the experimental observation of magnetic skyrmion-like states in patterned ferromagnetic nanostructures consisting of perpendicular magnetized Co/Pt multilayer film exchange coupled with Co nanodisks in vortex state. The magnetic force microscopy and micromagnetic simulations show that depending on the magnitude of Co/Pt perpendicular anisotropy in these systems two different modes of skyrmion formation are realized. 
A.A. Fraerman, O.L.Ermolaeva, E.V.Skorohodov, N.S.Gusev, V.L.Mironov,   S.N.Vdovichev, E.S.Demidov
cond-mat.mtrl-sci