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Three-dimensional magnetic nanotextures with high-order vorticity in soft magnetic wireframes

Author

Listed:
  • Oleksii M. Volkov

    (Institute of Ion Beam Physics and Materials Research)

  • Oleksandr V. Pylypovskyi

    (Institute of Ion Beam Physics and Materials Research
    Kyiv Academic University)

  • Fabrizio Porrati

    (Johann Wolfgang Goethe-Universität Frankfurt am Main)

  • Florian Kronast

    (Helmholtz-Zentrum Berlin für Materialien und Energie)

  • Jose A. Fernandez-Roldan

    (Institute of Ion Beam Physics and Materials Research)

  • Attila Kákay

    (Institute of Ion Beam Physics and Materials Research)

  • Alexander Kuprava

    (Johann Wolfgang Goethe-Universität Frankfurt am Main)

  • Sven Barth

    (Johann Wolfgang Goethe-Universität Frankfurt am Main)

  • Filipp N. Rybakov

    (Uppsala University)

  • Olle Eriksson

    (Uppsala University
    Uppsala University)

  • Sebastian Lamb-Camarena

    (Superconductivity and Spintronics Laboratory
    Vienna Doctoral School in Physics)

  • Pavlo Makushko

    (Institute of Ion Beam Physics and Materials Research)

  • Mohamad-Assaad Mawass

    (Helmholtz-Zentrum Berlin für Materialien und Energie
    Fritz-Haber-Institut der Max-Planck-Gesellschaft)

  • Shahrukh Shakeel

    (Institute of Ion Beam Physics and Materials Research)

  • Oleksandr V. Dobrovolskiy

    (Superconductivity and Spintronics Laboratory)

  • Michael Huth

    (Johann Wolfgang Goethe-Universität Frankfurt am Main)

  • Denys Makarov

    (Institute of Ion Beam Physics and Materials Research)

Abstract

Additive nanotechnology enable curvilinear and three-dimensional (3D) magnetic architectures with tunable topology and functionalities surpassing their planar counterparts. Here, we experimentally reveal that 3D soft magnetic wireframe structures resemble compact manifolds and accommodate magnetic textures of high order vorticity determined by the Euler characteristic, χ. We demonstrate that self-standing magnetic tetrapods (homeomorphic to a sphere; χ = + 2) support six surface topological solitons, namely four vortices and two antivortices, with a total vorticity of + 2 equal to its Euler characteristic. Alternatively, wireframe structures with one loop (homeomorphic to a torus; χ = 0) possess equal number of vortices and antivortices, which is relevant for spin-wave splitters and 3D magnonics. Subsequent introduction of n holes into the wireframe geometry (homeomorphic to an n-torus; χ

Suggested Citation

  • Oleksii M. Volkov & Oleksandr V. Pylypovskyi & Fabrizio Porrati & Florian Kronast & Jose A. Fernandez-Roldan & Attila Kákay & Alexander Kuprava & Sven Barth & Filipp N. Rybakov & Olle Eriksson & Sebas, 2024. "Three-dimensional magnetic nanotextures with high-order vorticity in soft magnetic wireframes," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-46403-8
    DOI: 10.1038/s41467-024-46403-8
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    References listed on IDEAS

    as
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