2025/12/26 by Sven Bjarke Gudnason, Gudnason, Sven Bjarke, Yuki Amari +3
Physics and Astronomy · Materials Science · #Magnetic properties of thin films #Magnetic Properties of Alloys #Multiferroics and related materials
paper · doi:10.48550/arxiv.2512.21880
Absorption of an isolated bulk magnetic skyrmion into an empty domain wall in a chiral ferromagnetic system is studied using the Landau-Lifshitz-Gilbert equation with and without the demagnetization effect taken into account. The full phase diagram of creation versus repulsion or annihilation is mapped out in case of both Bloch-type and Néel-type DMI, with and without demagnetization. Finally, the unstable domain wall, realizable with a setup of several external magnets, contains the theoretical possibility of producing a 1-dimensional version of the Kibble-Zurek mechanism, which in turn can create a number of skyrmion-anti-skyrmion pairs engulfed in the domain wall: We denote them domain-wall-skyrmion-anti-domain-wall-skyrmion pairs.