Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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2018-11-06
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en
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Physical Review Letters, Volume 121, issue 19, pp. 1-6
Abstract
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.Description
| openaire: EC/H2020/700385/EU//CLISEL
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Müller, G P, Bessarab, P F, Vlasov, S M, Lux, F, Kiselev, N S, Blügel, S, Uzdin, V M & Jónsson, H 2018, ' Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method ', Physical Review Letters, vol. 121, no. 19, 197202, pp. 1-6 . https://doi.org/10.1103/PhysRevLett.121.197202