TY  - JOUR
AU  - Müller, Gideon
AU  - Bessarab, Pavel F.
AU  - Vlasov, Sergei M.
AU  - Lux, Fabian
AU  - Kiselev, Nikolai
AU  - Blügel, Stefan
AU  - Uzdin, Valery M.
AU  - Jónsson, Hannes
TI  - Duplication, Collapse, and Escape of Magnetic Skyrmions Revealed Using a Systematic Saddle Point Search Method
JO  - Physical review letters
VL  - 121
IS  - 19
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2018-06310
SP  - 197202
PY  - 2018
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000449402000009
C6  - pmid:30468610
DO  - DOI:10.1103/PhysRevLett.121.197202
UR  - https://juser.fz-juelich.de/record/857042
ER  -