Creation of domain-wall skyrmions in chiral magnets with Landau-Lifshitz-Gilbert dynamics and demagnetization
Phys. Rev. B 113, 224425 – Published 12 June, 2026
DOI: https://doi.org/10.1103/7q1q-6qk6
Abstract
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 Dzyaloshinskii-Moriya interactions, with and without demagnetization. Finally, the unstable domain wall, realizable with a setup of several external magnets, contains the theoretical possibility of producing a one-dimensional version of the Kibble-Zurek mechanism, which in turn can create a number of skyrmion-antiskyrmion pairs engulfed in the domain wall: we denote them domain-wall-skyrmion–antidomain-wall-skyrmion pairs.
