Chiral magnetic skyrmions across length scales

Abstract

The profile and energy of chiral skyrmions, found in magnetic materials with the Dzyaloshinskii-Moriya interaction, can be approximated by formulae obtained through asymptotic analysis in the limits of small and large skyrmion radius. Using fitting techniques, we modify these formulae so that their validity extends to almost the entire range of skyrmion radii. Such formulae are obtained for skyrmions that are stabilised in the presence of an external field or easy-axis anisotropy or a combination of these. We further study the effect of the magnetostatic field on the skyrmion profile. We compare the profile of magnetic bubbles, stabilized without the chiral Dzyaloshinskii-Moriya interaction to that of a chiral skyrmion.

References in corpus (21)

• Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
• Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
• Field-Dependent Size and Shape of Single Magnetic Skyrmions
• A theory on skyrmion size and profile
• Full phase diagram of isolated skyrmions in a ferromagnet
• The properties of isolated chiral skyrmions in thin magnetic films
• Magnon-skyrmion scattering in chiral magnets
• Hybrid chiral domain walls and skyrmions in magnetic multilayers
• Direct imaging of a zero-field target skyrmion and its polarity switch in a chiral magnetic nanodisk
• Giant Skyrmions Stabilized by Dipole-Dipole Interactions in Thin Ferromagnetic Films
• Fluctuations and Instabilities of Ferromagnetic Domain Wall pairs in an External Magnetic Field
• Isolated zero field sub-10 nm skyrmions in ultrathin Co films
• Spin eigen-excitations of the magnetic skyrmion and problem of the effective mass
• Topology and dynamics in ferromagnetic media
• Internal structure of hexagonal skyrmion lattices in cubic helimagnets
• Temperature and magnetic field dependence of the internal and lattice structures of skyrmions by off-axis electron holography
• The skyrmion-bubble transition in a ferromagnetic thin film
• Unraveling the role of dipolar versus Dzyaloshinskii-Moriya interaction in stabilizing compact magnetic skyrmions
• Spin eigen-excitations of an antiferromagnetic skyrmion
• A quantitative description of skyrmions in ultrathin ferromagnetic films and rigidity of degree $\pm 1$ harmonic maps from ${\mathbb{R}}^2$ to ${\mathbb{S}}^2$
• The profile of chiral skyrmions of small radius

Cited by in corpus (1)

• Interaction and collision of skyrmions in chiral antiferromagnets