Duplication, collapse, and escape of magnetic skyrmions revealed using a systematic saddle point search method

GP Müller, PF Bessarab, SM Vlasov, F Lux, NS Kiselev… - Physical review …, 2018 - APS
Physical review letters, 2018APS
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 …
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.
American Physical Society
以上显示的是最相近的搜索结果。 查看全部搜索结果