Controlled Formation of Skyrmion Bags

Controlled Formation of Skyrmion Bags

© 2025 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - (2025) vom: 21. Apr., Seite e2501250
Auteur principal: Kern, Lisa-Marie (Auteur)
Autres auteurs: Kuchkin, Vladyslav M, Deinhart, Victor, Klose, Christopher, Sidiropoulos, Themistoklis, Auer, Maike, Gaebel, Simon, Gerlinger, Kathinka, Battistelli, Riccardo, Wittrock, Steffen, Karaman, Tamer, Schneider, Michael, Günther, Christian M, Engel, Dieter, Will, Ingo, Wintz, Sebastian, Weigand, Markus, Büttner, Felix, Höflich, Katja, Eisebitt, Stefan, Pfau, Bastian
Format: Article en ligne
Langue:English
Publié: 2025
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article X‐ray imaging higher‐order skyrmions ion irradiation laser‐induced nucleation skyrmion bags
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520 |a Topologically non-trivial magnetic solitons are complex spin textures with a distinct single-particle nature. Although magnetic skyrmions, especially those with unity topological charge, have attracted substantial interest due to their potential applications, more complex topological textures remain largely theoretical. In this work, the stabilization of isolated higher-order skyrmion bags beyond the prototypical π-skyrmion in ferromagnetic thin films is experimentally demonstrate, which has posed considerable challenges to date. Specifically, controlled generation of skyrmionium (2π-skyrmion), target skyrmion (3π-skyrmion), and skyrmion bags (with variable topological charge) are achieved through the introduction of artificially engineered anisotropy defects via local ion irradiation. They act as preferential sites for the field- or laser-induced nucleation of skyrmion bags. Remarkably, ultrafast laser pulses achieve a substantially higher conversion rate transforming skyrmions into higher-order skyrmion bags compared to their formation driven by magnetic fields. High-resolution x-ray imaging enables direct observation of the resulting skyrmion bags. Complementary micromagnetic simulations reveal the pivotal role of defect geometry-particularly diameter-in stabilizing closed-loop domain textures. The findings not only broaden the experimental horizon for skyrmion research, but also suggest strategies for exploiting complex topological spin textures within a unified material platform for practical applications 
650 4 |a Journal Article 
650 4 |a X‐ray imaging 
650 4 |a higher‐order skyrmions 
650 4 |a ion irradiation 
650 4 |a laser‐induced nucleation 
650 4 |a skyrmion bags 
700 1 |a Kuchkin, Vladyslav M  |e verfasserin  |4 aut 
700 1 |a Deinhart, Victor  |e verfasserin  |4 aut 
700 1 |a Klose, Christopher  |e verfasserin  |4 aut 
700 1 |a Sidiropoulos, Themistoklis  |e verfasserin  |4 aut 
700 1 |a Auer, Maike  |e verfasserin  |4 aut 
700 1 |a Gaebel, Simon  |e verfasserin  |4 aut 
700 1 |a Gerlinger, Kathinka  |e verfasserin  |4 aut 
700 1 |a Battistelli, Riccardo  |e verfasserin  |4 aut 
700 1 |a Wittrock, Steffen  |e verfasserin  |4 aut 
700 1 |a Karaman, Tamer  |e verfasserin  |4 aut 
700 1 |a Schneider, Michael  |e verfasserin  |4 aut 
700 1 |a Günther, Christian M  |e verfasserin  |4 aut 
700 1 |a Engel, Dieter  |e verfasserin  |4 aut 
700 1 |a Will, Ingo  |e verfasserin  |4 aut 
700 1 |a Wintz, Sebastian  |e verfasserin  |4 aut 
700 1 |a Weigand, Markus  |e verfasserin  |4 aut 
700 1 |a Büttner, Felix  |e verfasserin  |4 aut 
700 1 |a Höflich, Katja  |e verfasserin  |4 aut 
700 1 |a Eisebitt, Stefan  |e verfasserin  |4 aut 
700 1 |a Pfau, Bastian  |e verfasserin  |4 aut 
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773 1 8 |g year:2025  |g day:21  |g month:04  |g pages:e2501250 
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