The influence of film thickness and uniaxial anisotropy on in-plane skyrmions: Numerical investigations of the phase space of chiral magnets

The equilibrium phase space of magnetic textures in thin-films of cubic chiral ferromagnets, including skyrmions, is explored as a function of in-plane magnetic field strength, film thickness and uniaxial anisotropy. The interplay between these system parameters is found to give rise to a phase spac...

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Bibliographic Details
Published in:arXiv.org 2023-09
Main Authors: Cameron Rudderham, Plumer, Martin, Monchesky, Theodore
Format: Article
Language:English
Subjects:
Anisotropy
Cube texture
Ferromagnetism
Field strength
Film thickness
Hypothetical particles
Magnets
Parameter identification
Particle theory
Thin films
Topology
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Summary:The equilibrium phase space of magnetic textures in thin-films of cubic chiral ferromagnets, including skyrmions, is explored as a function of in-plane magnetic field strength, film thickness and uniaxial anisotropy. The interplay between these system parameters is found to give rise to a phase space with a rich structure, distinct from that of the nano-stripes that have been previously studied. For certain values of the anisotropy, the range of thicknesses supporting in-plane skyrmions and/or helicoids with an out-of-plane propagation vector is found to be disconnected, suggesting a possible direction for future experiments. We explain how this interesting phase space topology arises due to the geometric confinement of the thin-film system, and identify the optimal parameter ranges for future explorations of novel magnetic textures such as the oblique spiral phase.
ISSN:2331-8422