Anti-vortex state in cross-like nanomagnets

Details Anti-vortex state in cross-like nanomagnets Anti-vortex state in cross-like nanomagnets

2009-09-28

arxiv.org/abs/0909.5134v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

19 pages, 9 figures

Scientific paper

We report on results of computer micromodelling of anti-vortex states in asymmetrical cross-like ferromagnetic nanostructures and their practical realization. The arrays of cobalt crosses with 1 mkm branches, 100 nm widths of the branches and 40 nm thicknesses were fabricated using e-beam lithography and ion etching. Each branch of the cross was tapered at one end and bulbous at the other. The stable formation of anti-vortex magnetic states in these nanostructures during magnetization reversal was demonstrated experimentally using magnetic force microscopy.

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