Háskóli ÍslandsUniversity of IcelandMüller, Gideon PhilippBessarab, PavelVlasov, Sergei M.Lux, FabianKiselev, Nikolai S.Blügel, StefanUzdin, Valery M.Jónsson, Hannes2019-02-042019-02-042018-11-06Müller, G. P., Bessarab, P. F., Vlasov, S. M., Lux, F., Kiselev, N. S., Blügel, S., . . . Jónsson, H. (2018). Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method. Physical Review Letters, 121(19), 197202. doi:10.1103/PhysRevLett.121.1972020031-90071079-7114 (eISSN)https://hdl.handle.net/20.500.11815/1006Publisher's version (útgefin grein)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.197202eninfo:eu-repo/semantics/openAccessMethods in magnetismSkyrmionsNoncollinear magnetsCondensed Matter & Materials PhysicsÞéttefnisfræðiSegulmagninfo:eu-repo/semantics/articlePhysical Review Letters10.1103/PhysRevLett.121.197202