Engineering skyrmions in transition-metal multilayers for spintronics

Abstract

Magnetic skyrmions are localized, topologically protected spin-structures that have been proposed for storing or processing information due to their intriguing dynamical and transport properties. Important in terms of applications is the recent discovery of interface stabilized skyrmions as evidenced in ultra-thin transition-metal films. However, so far only skyrmions at interfaces with a single atomic layer of a magnetic material were reported, which greatly limits their potential for application in devices. Here, we predict the emergence of skyrmions in [4d/Fe_2/5d]_n multilayers, i.e. structures composed of Fe biatomic layers sandwiched between 4d- and 5d-transition-metal layers. In these composite structures, the exchange and the Dzyaloshinskii-Moriya interactions which control skyrmion formation can be tuned separately by the two interfaces. This allows engineering skyrmions as shown based on density functional theory and spin dynamics simulations.

6 pages, 4 figures

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• Field-Dependent Size and Shape of Single Magnetic Skyrmions
• Rotating skyrmion lattices by spin torques and field or temperature gradients
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Cited by in corpus (66)

• Tunable Room Temperature Magnetic Skyrmions in Ir/Fe/Co/Pt Multilayers
• Skyrmions in Magnetic Multilayers
• Skyrmion-electronics: Writing, deleting, reading and processing magnetic skyrmions toward spintronic applications
• Room-temperature current-induced generation and motion of sub-100nm skyrmions
• Observation of stable Neel skyrmions in Co/Pd multilayers with Lorentz transmission electron microscopy
• Antiskyrmions stabilized at interfaces by anisotropic Dzyaloshinskii-Moriya interaction
• Current-driven skyrmion dynamics in disordered films
• Perpendicular Reading of Single Confined Magnetic Skyrmions
• Thermally stable magnetic skyrmions in multilayer synthetic antiferromagnetic racetracks
• Interlayer Dzyaloshinskii-Moriya interactions
• Isolated zero field sub-10 nm skyrmions in ultrathin Co films
• Skyrmions with attractive interactions in an ultrathin magnetic film
• Spin orbit torques and Dzyaloshinskii-Moriya interaction in dual-interfaced Co-Ni multilayers
• Magnetic hopfions in solids
• Formation and stability of metastable skyrmionic spin structures with various topologies in an ultrathin film
• Asymmetric isolated skyrmions in polar magnets with easy-plane anisotropy
• Stability and lifetime of antiferromagnetic skyrmions
• Paths to collapse for isolated skyrmions in few-monolayer ferromagnetic films
• Extension of the standard Heisenberg Hamiltonian to multispin exchange interactions
• B-T phase diagram of Pd/Fe/Ir(111) computed with parallel tempering Monte Carlo
• Topological spin Hall effect in antiferromagnetic skyrmions
• Competition of Dzyaloshinskii-Moriya and higher-order exchange interactions in Rh/Fe atomic bilayers on Ir(111)
• Comparison of first-principles methods to extract magnetic parameters in ultra-thin films: Co/Pt(111)
• Inducing skyrmions in ultrathin Fe films by hydrogen exposure
• The microscopic origin of DMI in magnetic bilayers and prediction of giant DMI in new bilayers
• First-principles investigation of chiral magnetic properties in multilayers: Rh/Co/Pt and Pd/Co/Pt
• Skyrmions and multi-sublattice helical states in a frustrated chiral magnet
• Magnetism of a Co monolayer on Pt(111) capped by overlayers of $5d$ elements: a spin-model study
• Current-driven skyrmion Depinning in Magnetic Granular Films
• Current-induced dynamics of skyrmion tubes in synthetic antiferromagnetic multilayers
• Dzyaloshinskii-Moryia interaction at an antiferromagnetic interface: first-principles study of FeIr bilayers on Rh(001)
• Toward room-temperature nanoscale skyrmions in ultrathin films
• Domain walls and Dzyaloshinskii-Moriya interaction in epitaxial Co/Ir(111) and Pt/Co/Ir(111)
• Pattern formation in skyrmionic materials with anisotropic environments
• Electric dipole moment as descriptor for interfacial Dzyaloshinskii-Moriya interaction
• Dzyaloshinskii-Moriya interaction induced by an ultrashort electromagnetic pulse: Application to coherent (anti)ferromagnetic skyrmion nucleation
• A hierarchy of multi-moment skyrmion phases in twisted magnetic bilayers
• All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators
• Symmetry breaking in spin spirals and skyrmions by in-plane and canted magnetic fields
• Skyrmion Crystal and Phase Transition in Magneto-Ferroelectric Superlattices: Dzyaloshinskii-Moriya Interaction in a Frustrated $J_1-J_2$ Model
• Band filling effects on the emergence of magnetic skyrmions: Pd/Fe and Pd/Co bilayers on Ir(111)
• Driving spin chirality by electron dynamics in laser-excited antiferromagnets
• Temperature-induced increase of spin spiral periods
• Intermixing Induced Anisotropy Variations in CoB-based Chiral Multilayer Films
• Enhancement of Zero-Field Skyrmion Density in [Pt/Co/Fe/Ir]2 Multilayers by FORC
• Spin-current driven Dzyaloshinskii-Moriya interaction in the multiferroic BiFeO3 from first-principles
• Semi-realistic tight-binding model for Dzyaloshinskii-Moriya interaction
• Effects of interlayer exchange on collapse mechanisms and stability of magnetic skyrmions
• Skyrmion bound state and dynamics in an antiferromagnetic bilayer racetrack
• Stability and magnetic properties of Fe double-layers on Ir (111)
• A proposal for skyrmion-based diode-like device in antiferromagnetic nanostripe
• Spin-spiral formalism based on the multiple scattering Green's function technique with applications to ultrathin magnetic films and multilayers
• Tailoring magnetic interactions in atomic bilayers of Rh and Fe on Re(0001)
• Engineering skyrmion from spin spiral in transition metal multilayers
• Skyrmion Lattice Manipulation with Electric Currents and Thermal Gradients in MnSi
• Electrical Detection of Individual Skyrmions in Graphene Devices
• Skyrmion-Antiskyrmion Lattice: A Net-Zero Topological Phase in Low-Symmetry Frustrated Chiral Magnets
• Hybrid micromagnetic and atomistic modeling of magnetization dynamics induced by engineered defects
• Tuning non-collinear magnetic states by hydrogenation
• Quantized Topological Charges of Ferroelectric Skyrmions in Two-Dimensional Multiferroic Materials
• Hydrogen toggling between Yoshimori spin spirals and elliptical Dzyaloshinskii-Moriya skyrmions in Fe on Ir(110)
• Releasing latent chirality in magnetic two-dimensional materials
• Paradoxical Topological Soliton Lattice in Anisotropic Frustrated Chiral Magnets
• Incommensurate magnetic ordering in CrB${}_2$
• Nanoscale control of perpendicular magnetic anisotropy, interfacial Dzyaloshinskii-Moriya interaction and skyrmions in the inversion-symmetry-broken Ru/Co/W/Ru films
• Dynamics of antiskyrmion shrinking