a M vs. H curves at room temperature for the as-grown film (out-of-plane) and a patterned medium with 100-nm-sized columns (out-of-plane and in-plane). b Out-of-plane M vs. H curves for the as-grown film and patterned media with 100 and 50 nm columns. c XRD pattern of a patterned medium with 100-nm-sized columns.
Kim et al. Nanoscale Res Lett 2011 6:13 doi:10.1007/s11671-010-9755-2