Path to collapse for an isolated Néel skyrmion

Abstract

A path method is implemented in order to precisely and generally describe the collapse of isolated skyrmions in a Co/Pt(111) monolayer, on the basis of atomic scale simulations. Two collapse mechanisms with different energy barriers are found. The most obvious path, featuring a homogeneous shrinking gives the largest energy, whereas the lowest energy barrier is shown to comply with the outcome of Langevin dynamics under a destabilizing field of 0.25 T, with a lifetime of 20~ns at around 80~K. For this lowest energy barrier path, skyrmion destabilization occurs much before any topology change, suggesting that topology plays a minor role in the skyrmion stability. On the contrary, an important role appears devoted to the Dzyaloshinskii-Moriya interaction, establishing a route towards improved skyrmion stability.

9 pages, 6 figures

References in corpus (5)

• Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
• Magnetic skyrmion logic gates: conversion, duplication and merging of skyrmions
• Interfacial Dzyaloshinskii-Moriya interaction in perpendicularly-magnetized Pt/Co/AlO${}_x$ ultrathin films measured by Brillouin light spectroscopy
• Inertia, diffusion and dynamics of a driven skyrmion
• Skyrmion collapse

Cited by in corpus (77)

• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Interface-Induced Phenomena in Magnetism
• Room-temperature current-induced generation and motion of sub-100nm skyrmions
• Full phase diagram of isolated skyrmions in a ferromagnet
• The skyrmion switch: turning magnetic skyrmion bubbles on and off with an electric field
• Creation of Magnetic Skyrmion Bubble Lattices by Ultrafast Laser in Ultrathin Films
• Thermal stability and topological protection of skyrmions in nanotracks
• Deterministic creation and deletion of a single magnetic skyrmion observed by direct time-resolved X-ray microscopy
• Effects of spatially engineered Dzyaloshinskii-Moriya interaction in ferromagnetic films
• Discrete Hall resistivity contribution from Néel skyrmions in multilayer nanodiscs
• Direct demonstration of topological stability of magnetic skyrmions via topology manipulation
• Origin of temperature and field dependence of magnetic skyrmion size in ultrathin nanodots
• Thermal stability of metastable magnetic skyrmions: Entropic narrowing and significance of internal eigenmodes
• Trochoidal motion and pair generation in skyrmion and antiskyrmion dynamics under spin-orbit torques
• Skyrmion production on demand by homogeneous DC currents
• Micromagnetics of anti-skyrmions in ultrathin films
• Skyrmion formation in a bulk chiral magnet at zero magnetic field and above room temperature
• Stability and lifetime of antiferromagnetic skyrmions
• Brownian motion of magnetic domain walls and skyrmions, and their diffusion constants
• Paths to collapse for isolated skyrmions in few-monolayer ferromagnetic films
• Skyrmion lifetimes in ultrathin films
• Magnetic skyrmions in confined geometries : effect of the magnetic field and the disorder
• Topological spin Hall effects and tunable skyrmion Hall effects in uniaxial antiferromagnetic insulators
• Mechanisms of skyrmion collapse revealed by sub-nm maps of the transition rate
• Energy surface and lifetime of magnetic skyrmions
• Paths to annihilation of first and second-order (anti)skyrmions via (anti)meron nucleation on the frustrated square lattice
• Tuning interfacial Dzyaloshinskii-Moriya interactions in thin amorphous ferrimagnetic alloys
• The effect of confinement and defects on the thermal stability of skyrmions
• Single spin sensing of domain wall structure and dynamics in a thin film skyrmion host
• A Nanoscale Room-Temperature Multilayer Skyrmionic Synapse for Deep Spiking Neural Networks
• Rashba-type Dzyaloshinskii-Moriya interaction, perpendicular magnetic anisotropy and skyrmion states at 2D materials/Co interfaces
• Modeling the shape of axisymmetric skyrmions in magnetic multilayers
• Stability and dynamics of in-plane skyrmions in collinear ferromagnets
• First-principles prediction of sub-10 nm skyrmions in Pd/Fe bilayers on Rh(111)
• Universality of annihilation barriers of large magnetic skyrmions in chiral and frustrated magnets
• Current-driven skyrmion Depinning in Magnetic Granular Films
• Topological dynamical quantum phase transition in a quantum skyrmion phase
• Skyrmion mediated voltage controlled switching of ferromagnets for reliable and energy efficient 2-terminal memory
• Local control of magnetic interface effects in chiral Ir$|$Co$|$Pt multilayers using Ga${}^{+}$ ion irradiation
• Emergence of Transient Domain Wall Skyrmions after Ultrafast Demagnetisation
• Path sampling for lifetimes of metastable magnetic skyrmions and direct comparison with Kramers' method
• Toward room-temperature nanoscale skyrmions in ultrathin films
• On quantifying the topological charge in micromagnetics using a lattice-based approach
• Fast and Robust Algorithm for the Energy Minimization of Spin Systems Applied in an Analysis of High Temperature Spin Configurations in Terms of Skyrmion Density
• Making the Dzyaloshinskii-Moriya interaction visible
• Magnetic domain walls of the van der Waals material Fe${}_3$GeTe${}_2$
• Spontaneous creation and annihilation dynamics and strain-limited stability of magnetic skyrmions
• Stability of skyrmion crystal phase in antiferromagnetic triangular lattice with DMI and single-ion anisotropy
• Efficient Optimization Method for Finding Minimum Energy Paths of Magnetic Transitions
• The effect of boundary-induced chirality on magnetic textures in thin films
• Stabilizing chiral spin-structures via an alternating Dzyaloshinskii-Moriya interaction
• Spin-polarized scanning tunneling microscopy characteristics of skyrmionic spin structures exhibiting various topologies
• Micromagnetic study of skyrmion stability in confined magnetic structures with perpendicular anisotropy
• Thermal Collapse of a Skyrmion
• Band filling effects on the emergence of magnetic skyrmions: Pd/Fe and Pd/Co bilayers on Ir(111)
• Controlling the nucleation and annihilation of skyrmions with magnetostatic interactions
• Stabilization of the skyrmion crystal phase in thin-film antiferromagnets
• Topological Hall effect in diffusive ferromagnetic thin films with spin-flip scattering
• Skyrmion Echo in a system of interacting Skyrmions
• Skyrmion lattice hosted in synthetic antiferromagnets and helix modes
• Energy-efficient generation of skyrmion phases in Co/Ni/Pt-based multilayers using Joule heating
• GPU Accelerated Atomistic Energy Barrier Calculations of Skyrmion Annihilations
• Polyhexatic and Polycrystalline States of Skyrmion Lattices
• Topological energy barrier for skyrmion lattice formation in MnSi
• Topological antiferromagnetic spintronics: Part of a collection of reviews on antiferromagnetic spintronics
• Tailoring Magnetic Skyrmions by Geometric Confinement of Magnetic Structures
• Thermal motion of skyrmion arrays in granular films
• Tailoring energy barriers of Bloch-point-mediated transitions between topological spin textures
• Dynamics of the collapse of a ferromagnetic skyrmion in a centrosymmetric lattice
• Superconducting Diode sensor
• Direct observation of topological charge impacting skyrmion bubble stability in Pt/Ni/Co asymmetric superlattices
• The dynamics of skyrmion shrinking
• Lifetime of racetrack skyrmions
• Design Rules for DMI-Stabilised Skyrmions
• Magnetoelectricity of Topological Solitons in 2D Magnets
• Crescent domain-wall pairs in anisotropic two-dimensional MnOI monolayer with fast dynamics
• Positional stability of skyrmions in a racetrack memory with notched geometry