Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method

Tutkimustuotos: Lehtiartikkeli


  • Gideon P. Müller
  • Pavel F. Bessarab
  • Sergei M. Vlasov
  • Fabian Lux
  • Nikolai S. Kiselev
  • Stefan Blügel
  • Valery M. Uzdin
  • Hannes Jonsson


  • University of Iceland
  • Forschungszentrum Jülich
  • RWTH Aachen University
  • St. Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO)
  • St. Petersburg State University


Various transitions that a magnetic Skyrmion can undergo are found in calculations using a method for climbing up the energy surface and converging onto first order saddle points. In addition to collapse and escape through a boundary, the method identifies a transition where the Skyrmion divides and forms two Skyrmions. The activation energy for this duplication process can be similar to that of collapse and escape. A tilting of the external magnetic field for a certain time interval is found to induce the duplication process in a dynamical simulation. Such a process could turn out to be an important avenue for the creation of Skyrmions in future magnetic devices.


JulkaisuPhysical Review Letters
TilaJulkaistu - 6 marraskuuta 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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