Imprinting skyrmions in thin films by ferromagnetic and superconducting templates

Nuria Del-Valle; Sebastia Agramunt-Puig; Carles Navau; Alvaro Sanchez

doi:10.1063/1.4932090

Imprinting skyrmions in thin films by ferromagnetic and superconducting templates

Materials Science 2015-10-28 v1 Mesoscale and Nanoscale Physics Superconductivity

Authors: Nuria Del-Valle , Sebastia Agramunt-Puig , Carles Navau , Alvaro Sanchez

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Abstract

Magnetic skyrmions are promising candidates as information carriers in a new generation of memories. How to generate and stabilize skyrmions is essential for their successful application to technology. Here we theoretically demonstrate that arrays of skyrmions can be imprinted in ultrathin ferromagnetic films in large numbers by bringing a magnetic nanostructured template close to the film. Two kind of templates, allowed by present-day nanotechnologies, are studied: arrays of ferromagnetic nanorods and superconducting vortices. Skyrmions are generated when exposing magnetic films to the template fields for short times and remain stable after removing the template.

Keywords

magnetic skyrmions ultrathin ferromagnetic films nanopatterned templates ferromagnetic nanorods superconducting vortices skyrmion stability magnetic memory

Cite

@article{arxiv.1407.0928,
  title  = {Imprinting skyrmions in thin films by ferromagnetic and superconducting templates},
  author = {Nuria Del-Valle and Sebastia Agramunt-Puig and Carles Navau and Alvaro Sanchez},
  journal= {arXiv preprint arXiv:1407.0928},
  year   = {2015}
}

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6 pages, 4 figures

Imprinting skyrmions in thin films by ferromagnetic and superconducting templates

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