Creation of domain-wall skyrmions in chiral magnets with Landau-Lifshitz-Gilbert dynamics and demagnetization

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 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.

REVTeX: 31 pages, 20 figures, 67 ancillary videos; V2: comments, appendix B and appendix C added, typos corrected

References in corpus (29)

• The 2020 Skyrmionics Roadmap
• Magnetic skyrmions, chiral kinks and holomorphic functions
• Observation of domain wall bimerons in chiral magnets
• Josephson vortices and the Atiyah-Manton construction
• Correspondence between Skyrmions in 2+1 and 3+1 Dimensions
• Domain wall Skyrmions
• Matryoshka Skyrmions
• Incarnations of Skyrmions
• Non-Abelian Sine-Gordon Solitons: Correspondence between $SU(N)$ Skyrmions and $\mathbb{C}{P}^{N-1}$ Lumps
• Relations among topological solitons
• Domain Wall Skyrmions in Chiral Magnets
• Emergence of Transient Domain Wall Skyrmions after Ultrafast Demagnetisation
• Phase diagram of QCD matter with magnetic field: domain-wall Skyrmion chain in chiral soliton lattice
• Wigner solids of domain wall skyrmions
• Realistic classical binding energies in the $\omega$-Skyrme model
• Chiral Magnets from String Theory
• Magnon dynamics in a Skyrmion-textured domain wall of antiferromagnets
• Magnetic domain wall substructures in Pt/Co/Ni/Ir multi-layers
• Current-driven motion of magnetic domain-wall skyrmions
• Spin Statistics and Surgeries of Topological Solitons in QCD Matter in Magnetic Field
• Magnetic Bimeron Traveling on the Domain Wall
• Skyrmion crystals stabilized by $\omega$-mesons
• Magnonics along the wall in Bimeron Chain Domain Walls
• Domain Wall Networks as Skyrmion Crystals in Chiral Magnets
• Creation of domain-wall Skyrmions in chiral magnets
• Domain wall skyrmion-based magnonic crystal
• Magnetic D-brane solitons: skyrmion strings ending on a Néel wall in chiral magnets
• Current-driven dynamics of antiferromagnetic domain-wall skyrmions
• Demagnetization in micromagnetics: magnetostatic self-interactions of bulk chiral magnetic skyrmions