Orientation dependent current-induced motion of skyrmions with various topologies

Abstract

We study the current-driven motion of metastable localized spin structures with various topological charges in a (Pt${}_{1-x}$Ir${}_x$)/Fe bilayer on a Pd(111) surface by combining atomistic spin model simulations with an approach based on the generalized Thiele equation. We demonstrate that besides a distinct dependence on the topological charge itself the dynamic response of skyrmionic structures with topological charges $\mathrm{Q}=-1$ and $\mathrm{Q}=3$ to a spin-polarized current exhibits an orientation dependence. We further show that such an orientation dependence can be induced by applying an in-plane external field, possibly opening up a new pathway to the manipulation of skyrmion dynamics.

References in corpus (28)

• Skyrmion Lattice in a Chiral Magnet
• Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets
• Spin Transfer Torques in MnSi at Ultra-low Current Densities
• Direct Observation of the Skyrmion Hall Effect
• Skyrmions at room temperature : From magnetic thin films to magnetic multilayers
• Additive interfacial chiral interaction in multilayers for stabilization of small individual skyrmion at room temperature
• Micromagnetic understanding of current-driven domain wall motion in patterned nanowires
• Emergent electrodynamics of skyrmions in a chiral magnet
• Current-induced skyrmion dynamics in constricted geometries
• Skyrmion Hall Effect Revealed by Direct Time-Resolved X-Ray Microscopy
• Theory of current-driven motion of Skyrmions and spirals in helical magnets
• Skyrmion Lattice in a Doped Semiconductor
• Multiple-q states and skyrmion lattice of the triangular-lattice Heisenberg antiferromagnet under magnetic fields
• A new class of chiral materials hosting magnetic skyrmions beyond room temperature
• Dynamics of Skyrmion Crystals in Metallic Thin Films
• Long wavelength helimagnetic order and skyrmion lattice phase in Cu2OSeO3
• Electric field driven switching of individual magnetic skyrmions
• A reversible conversion between a skyrmion and a domain-wall pair in junction geometry
• Thermal skyrmion diffusion applied in probabilistic computing
• Precursor phenomena at the magnetic ordering of the cubic helimagnet FeGe
• Capturing of a Magnetic Skyrmion with a Hole
• Real-Space Berry Phases - Skyrmion Soccer
• Stabilization and current-induced motion of antiskyrmion in the presence of anisotropic Dzyaloshinskii-Moriya interaction
• Skyrmions with attractive interactions in an ultrathin magnetic film
• Trochoidal motion and pair generation in skyrmion and antiskyrmion dynamics under spin-orbit torques
• Formation and stability of metastable skyrmionic spin structures with various topologies in an ultrathin film
• Non-circular skyrmion and its anisotropic response in thin films of chiral magnets under tilted magnetic field
• Dynamics of distorted skyrmions in strained chiral magnets

Cited by in corpus (7)

• Beyond skyrmions: Review and perspectives of alternative magnetic quasiparticles
• Geometry and Symmetry in Skyrmion Dynamics
• Anisotropic skyrmion diffusion controlled by field-induced symmetry breaking
• Skyrmion Dynamics in the Presence of Deformation
• Ferrochiral, antiferrochiral, and ferrichiral skyrmion crystals in an itinerant honeycomb magnet
• Skyrmions as quasiparticles: free energy and entropy
• Spin waves in skyrmionic structures with various topological charges