Scheme of the replication process: (a) nanostructured Al foil used as template, (b) PMMA is spread over the patterned Al surface, (c) nanopatterned PMMA is removed from the Al template, and (d) magnetic thin film is deposited by sputtering onto the PMMA surface.
AFM images of the Co samples with different periodicities: (a) phosphoric (480 nm); (b) oxalic (105 nm); and (c) sulfuric (65nm) samples.
(a) Hysteresis loops of the three different samples. In all cases 10 nm Co layer and 2 nm Cr coating layer are deposited by sputtering at 60°; (b) coercivity as a function of the orientation of applied magnetic field for the three kinds of samples.
MFM images for (a) phosphoric and (b) oxalic samples.
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