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SUMMARY:Skyrmions and hopfions in chiral magnetic crystals - Filipp Rybako
 v (Uppsala Universitet)
DTSTART:20250821T104500Z
DTEND:20250821T113000Z
UID:TALK234757@talks.cam.ac.uk
DESCRIPTION:Recent theoretical and experimental studies of chiral crystals
  have revealed a wide variety of new three-dimensional magnetic textures w
 ith non-trivial topology: skyrmion strings [1]\, their clusters\, bundles 
 and braids [2]\, as well as hopfions [3]. We discuss how these discoveries
  were made possible by combining micromagnetic simulations with Lorentz tr
 ansmission electron microscopy or off-axis holography. We also pay special
  attention to the topology of these textures and new ways to classify them
  using homotopy groups [3\,4].\n[1] F.N. Rybakov\, et al. PRL 115\, 117201
  (2015).\n[2] F. Zheng\, et al. Nat. Commun. 12\, 5316 (2021).\n[3] F. Zhe
 ng\, et al. Nature 623\, 718 (2023).\n[4] F.N. Rybakov\, et al. PRB 111\, 
 134417 (2025).
LOCATION:Seminar Room 1\, Newton Institute
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