<p>Topologically nontrivial localized 2D magnetic states with high topological charge (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\({\text{|}}Q{\text{|}} &gt; 1\)</EquationSource> <!--JETPLet2660088Shustin-m1--> </InlineEquation>) have attracted significant attention in the last decade, driven by their experimental and numerical discovery. In this work, we propose an analytical ansatz capable of describing both axially symmetric <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(k\pi \)</EquationSource> <!--JETPLet2660088Shustin-m2--> </InlineEquation>-skyrmions and <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\({{C}_{g}}\)</EquationSource> <!--JETPLet2660088Shustin-m3--> </InlineEquation>-symmetric skyrmion bags, with a straightforward extension to a wide range of other multi-skyrmion textures. By comparing with numerical micromagnetic simulations, we show that the proposed ansatz describes skyrmion bags with accuracy sufficient for practical applications.</p>

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Analytical Profiles of Skyrmion Bags

  • M. S. Shustin,
  • M. N. Potkina,
  • A. D. Fedoseev,
  • D. M. Dzebisashvili

摘要

Topologically nontrivial localized 2D magnetic states with high topological charge ( \({\text{|}}Q{\text{|}} > 1\) ) have attracted significant attention in the last decade, driven by their experimental and numerical discovery. In this work, we propose an analytical ansatz capable of describing both axially symmetric \(k\pi \) -skyrmions and \({{C}_{g}}\) -symmetric skyrmion bags, with a straightforward extension to a wide range of other multi-skyrmion textures. By comparing with numerical micromagnetic simulations, we show that the proposed ansatz describes skyrmion bags with accuracy sufficient for practical applications.