Fractional vortices and composite domain walls in flat nanomagnets

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We provide a simple explanation of complex magnetic patterns observed in ferromagnetic nanostructures. To this end we identify elementary topological defects in the field of magnetization: ordinary vortices in the bulk and vortices with half-integer winding numbers confined to the edge. Domain walls found in experiments and numerical simulations in strips and rings are composite objects containing two or more of the elementary defects.
Minor changes: updated references and fixed typos

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Other Condensed Matter, High Energy Physics - Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/96065

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0506744
 http://arxiv.org/abs/cond-mat/0506744
 Phys.Rev.Lett. 95 (2005) 197204
 doi:10.1103/PhysRevLett.95.197204

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