Skyrmion-like bubbles and stripes in a thin ferromagnetic film with lattice of antidots

We study the fundamental magnetic states of thin nanostructured (lattice of antidots) ferromagnetic film with quality factor less than unity. It was found that the analog of the skyrmions magnetic bubble lattice could be formed in such ferromagnetic film. These topological excitations are stable and confined due to the antidot lattice, unlike magnetic bubbles in continuous film. Some other magnetic structures similar to those observed in a films with strong uniaxial anisotropy perpendicular to the film plane were also found in the film at different magnitude of external magnetic field.