Individual skyrmion manipulation by local magnetic field gradients
arXiv:1903.00367 · doi:10.1038/s42005-019-0242-5
Abstract
Magnetic skyrmions are topologically protected spin textures, stabilised in systems with strong Dzyaloshinskii-Moriya interaction (DMI). Several studies have shown that electrical currents can move skyrmions efficiently through spin-orbit torques. While promising for technological applications, current-driven skyrmion motion is intrinsically collective and accompanied by undesired heating effects. Here we demonstrate a new approach to control individual skyrmion positions precisely, which relies on the magnetic interaction between sample and a magnetic force microscopy (MFM) probe. We investigate perpendicularly magnetised X/CoFeB/MgO multilayers, where for X = W or Pt the DMI is sufficiently strong to allow for skyrmion nucleation in an applied field. We show that these skyrmions can be manipulated individually through the local field gradient generated by the scanning MFM probe with an unprecedented level of accuracy. Furthermore, we show that the probe stray field can assist skyrmion nucleation. Our proof-of-concepts results offer current-free paradigms to efficient individual skyrmion control.
References in corpus (39)
- Skyrmion Lattice in a Chiral Magnet
- The design and verification of Mumax3
- Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
- Observation of room temperature magnetic skyrmions and their current-driven dynamics in ultrathin Co films
- Topological Hall effect in the A-phase of MnSi
- Blowing Magnetic Skyrmion Bubbles
- Spin Transfer Torques in MnSi at Ultra-low Current Densities
- 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
- Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films
- Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
- Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
- Current-induced skyrmion dynamics in constricted geometries
- Skyrmion Hall Effect Revealed by Direct Time-Resolved X-Ray Microscopy
- Tunable Room Temperature Magnetic Skyrmions in Ir/Fe/Co/Pt Multilayers
- Skyrmion-skyrmion and skyrmion-edge repulsions in skyrmion-based racetrack memory
- Interface control of the magnetic chirality in CoFeB|MgO heterosctructures with heavy metal underlayers
- Room-temperature current-induced generation and motion of sub-100nm skyrmions
- Thermal skyrmion diffusion applied in probabilistic computing
- Dynamics of an Insulating Skyrmion under a Temperature Gradient
- Field-free deterministic ultra fast creation of skyrmions by spin orbit torques
- Electrical signature of individual magnetic skyrmions in multilayered systems
- Rotating skyrmion lattices by spin torques and field or temperature gradients
- Spin-orbit torque-driven skyrmion dynamics revealed by time-resolved X-ray microscopy
- Scaling of Dzyaloshinskii Moriya interaction at heavy metal and ferromagnetic metal interfaces
- Skyrmion dynamics in chiral ferromagnets
- Domain structure in CoFeB thin films with perpendicular magnetic anisotropy
- Chiral magnetic textures in Ir/Fe/Co/Pt multilayers: Evolution and topological Hall signature
- Asymmetric spin-wave dispersion due to Dzyaloshinskii-Moriya interaction in an ultrathin Pt/CoFeB film
- Probing the Dzyaloshinskii-Moriya interaction in CoFeB ultrathin films using domain wall creep and Brillouin light spectroscopy
- Pinning and movement of individual nanoscale magnetic skyrmions via defects
- Investigation of the Dzyaloshinskii-Moriya interaction and room temperature skyrmions in W/CoFeB/MgO thin films and microwires
- Interfacial Dzyaloshinskii-Moriya interaction in Ta\Co20Fe60B20\MgO nanowires
- Skyrmions Driven by Intrinsic Magnons
- Effect of annealing on the interfacial Dzyaloshinskii-Moriya interaction in Ta/CoFeB/MgO trilayers
- Magnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnets
- Modification of Dzyaloshinskii-Moriya interaction stabilized domain wall chirality by driving currents
- Dynamics of magnon fluid in Dzyaloshinskii-Moriya magnet and its manifestation in magnon-Skyrmion scattering
- Observation of Skyrmions at Room Temperature in Co2FeAl Heusler Alloy Ultrathin Films
Cited by in corpus (31)
- Statics and Dynamics of Skyrmions Interacting with Pinning: A Review
- Skyrmion Qubits: A New Class of Quantum Logic Elements Based on Nanoscale Magnetization
- Faster chiral versus collinear magnetic order recovery after optical excitation revealed by femtosecond XUV scattering
- Skyrmion Qubits: Challenges For Future Quantum Computing Applications
- Colloquium: Quantum Properties and Functionalities of Magnetic Skyrmions
- Magnon-Skyrmion Hybrid Quantum Systems: Tailoring Interactions via Magnons
- Majorana Bound States Induced by Antiferromagnetic Skyrmion Textures
- Thermoelectric signature of individual skyrmions
- Curvature induced drift and deformation of magnetic skyrmions: comparison of ferro- and antiferromagnetic cases
- Microscopic Theory of Ultrafast Skyrmion Excitation by Light
- Chip-Integrated Vortex Manipulation
- Skyrmion based energy efficient straintronic physical reservoir computing
- Room Temperature Magnetic Skyrmions in Gradient-Composition Engineered CoPt Single Layers
- Dynamics and Nonmonotonic Drag for Individually Driven Skyrmions
- Detection of Topological Spin Textures via Non-Linear Magnetic Responses
- Spacetime magnetic hopfions: from internal excitations and braiding of skyrmions
- Commensuration Effects on Skyrmion Hall Angle and Drag for Manipulation of Skyrmions on Two-Dimensional Periodic Substrates
- Quantum calibrated magnetic force microscopy
- Driving skyrmions with low threshold current density in Pt/CoFeB thin film
- Manipulating 1-dimensinal skyrmion motion by external magnetic field gradient
- Defect-Correlated Skyrmions and Controllable Generation in Perpendicularly Magnetized CoFeB Ultrathin Films
- Laser-induced helicity and texture-dependent switching of nanoscale stochastic domains in a ferromagnetic film
- Elliptical skyrmions: theory and nucleation by a magnetic tip in an antiskyrmion-hosting material
- Active Rheology and Anti-Commensuration Effects For Driven Probe Particles on Two Dimensional Periodic Pinning Substrates
- Skyrmion formation in nanodiscs using magnetic force microscopy tip
- Design of 2D Skyrmionic Metamaterial Through Controlled Assembly
- Differential Magnetic Force Microscopy with a Switchable Tip
- Controlling Skyrmion Lattice Orientation with Local Magnetic Field Gradients
- Nanoscale magnetometry of a synthetic three-dimensional spin texture
- Optically Controlled Skyrmion Number Current
- Majorana bound states with chiral magnetic textures