Skyrmion morphology in ultrathin magnetic films

Abstract

Nitrogen-vacancy magnetic microscopy is employed in quenching mode as a non-invasive, high resolution tool to investigate the morphology of isolated skyrmions in ultrathin magnetic films. The skyrmion size and shape are found to be strongly affected by local pinning effects and magnetic field history. Micromagnetic simulations including static disorder, based on a physical model of grain-to-grain thickness variations, reproduce all experimental observations and reveal the key role of disorder and magnetic history in the stabilization of skyrmions in ultrathin magnetic films. This work opens the way to an in-depth understanding of skyrmion dynamics in real, disordered media.

arXiv comment9 pages, 8 figures, including supplementary informations

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Cited by in corpus (38)

• Statics and Dynamics of Skyrmions Interacting with Pinning: A Review
• Current-Driven Skyrmion Dynamics and Drive-Dependent Skyrmion Hall Effect in an Ultrathin Film
• Fast current-induced skyrmion motion in synthetic antiferromagnets
• Imaging non-collinear antiferromagnetic textures via single spin relaxometry
• Skyrmions in synthetic antiferromagnets and their nucleation via electrical current and ultrafast laser illumination
• Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
• Skyrmions and antiskyrmions in quasi-two-dimensional magnets
• Skyrmion pinning energetics in thin film systems
• Velocity enhancement by synchronization of magnetic domain walls
• Topological superconductivity with deformable magnetic skyrmions
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• Parabolic diamond scanning probes for single spin magnetic field imaging
• Single spin sensing of domain wall structure and dynamics in a thin film skyrmion host
• Magneto-Seebeck microscopy of domain switching in collinear antiferromagnet CuMnAs
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• Designer Meron Lattice on the Surface of a Topological Insulator
• A hierarchy of multi-moment skyrmion phases in twisted magnetic bilayers
• Strength and length-scale of the interaction between domain walls and pinning disorder in thin ferromagnetic films
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