Controlled creation and stability of kπ-skyrmions on a discrete lattice
arXiv:1802.09257 · doi:10.1103/PhysRevB.97.174436
Abstract
We determine sizes and activation energies of kπ-skyrmions on a discrete lattice using the Landau- Lifshitz-Gilbert equation and the geodesic nudged elastic band method. The employed atomic material parameters are based on the skyrmionic material system Pd/Fe/Ir(111). We find that the critical magnetic fields for collapse of the 2π-skyrmion and 3π-skyrmion are very close to each other and considerably lower than the critical field of the 1π-skyrmion. The activation energy protecting the structures does not strictly decrease with increasing k as it can be larger for the 3π-skyrmion than for the 2π-skyrmion depending on the applied magnetic field. Furthermore, we propose a method of switching the skyrmion order k by a reversion of the magnetic field direction in samples of finite size.
arXiv commentVersion 1
References in corpus (26)
- Skyrmion Lattice in a Chiral Magnet
- Observation of room temperature magnetic skyrmions and their current-driven dynamics in ultrathin Co films
- Spin Transfer Torques in MnSi at Ultra-low Current Densities
- Direct Observation of the Skyrmion Hall Effect
- Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
- Current-induced skyrmion dynamics in constricted geometries
- Theory of current-driven motion of Skyrmions and spirals in helical magnets
- Creep and flow regimes of magnetic domain wall motion in ultrathin Pt/Co/Pt films with perpendicular anisotropy
- Dynamics of Skyrmion Crystals in Metallic Thin Films
- Field-Dependent Size and Shape of Single Magnetic Skyrmions
- Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies?
- Laser-Induced Magnetic Nanostructures with Tunable Topological Properties
- Magnon-skyrmion scattering in chiral magnets
- Control and manipulation of a magnetic skyrmionium in nanostructures
- Method for finding mechanism and activation energy of magnetic transitions, applied to skyrmion and antivortex annihilation
- Ground state search, hysteretic behaviour, and reversal mechanism of skyrmionic textures in confined helimagnetic nanostructures
- Inertia, diffusion and dynamics of a driven skyrmion
- Ultrafast generation of skyrmionic defects with vortex beams: printing laser profiles on magnets
- Skyrmion dynamics in chiral ferromagnets
- Formation and stability of metastable skyrmionic spin structures with various topologies in an ultrathin film
- Paths to collapse for isolated skyrmions in few-monolayer ferromagnetic films
- Target-skyrmions and skyrmion clusters in nanowires of chiral magnets
- Dynamics of skyrmionic states in confined helimagnetic nanostructures
- Encoding orbital angular momentum of light in magnets
- Phenomenology of current-skyrmion interactions in thin films with perpendicular magnetic anisotropy
- Cycloidal versus skyrmionic states in mesoscopic chiral magnets
Cited by in corpus (18)
- Beyond skyrmions: Review and perspectives of alternative magnetic quasiparticles
- Skyrmion-electronics: Writing, deleting, reading and processing magnetic skyrmions toward spintronic applications
- Spirit: Multifunctional Framework for Atomistic Spin Simulations
- Spin torque nano-oscillators based on antiferromagnetic skyrmions
- Chiral Magnetic Skyrmions with Arbitrary Topological Charge ("skyrmionic sacks")
- Electrical writing, deleting, reading, and moving of magnetic skyrmioniums in a racetrack device
- Skyrmion lifetimes in ultrathin films
- Nano-scale magnetic skyrmions and target states in confined geometries
- Field-tuned spin excitation spectrum of -skyrmion
- Effective damping enhancement in noncollinear spin structures
- Zero-field skyrmionic states and in-field edge-skyrmions induced by boundary tuning
- Localized spin waves in isolated skyrmions
- High-resolution combined tunneling electron charge and spin transport theory of Néel and Bloch skyrmions
- Frustration-driven topological textures on the honeycomb lattice: antiferromagnetic meron-antimeron and skyrmion crystals emerging from spiral spin liquids
- Ferroelectric Properties and Topological Polar Textures of PbTiO from a Second-Principles Open-Source Interatomic Potential
- Metaheuristic conditional neural network for harvesting skyrmionic metastable states
- High-resolution tunneling spin transport characteristics of topologically distinct magnetic skyrmionic textures from theoretical calculations
- Nanoscale Skyrmions on a Square Atomic Lattice