Voltage-Driven High-Speed Skyrmion Motion in a Skyrmion Shift Device
arXiv:1803.05615 · doi:10.1103/PhysRevApplied.11.014004
Abstract
Magnetic skyrmions are promising information carriers for building future high-density and high-speed spintronic devices. However, to achieve a current-driven high-speed skyrmion motion, the required driving current density is usually very large, which could be energy inefficient and even destroy the device due to Joule heating. Here, we propose a voltage-driven skyrmion motion approach in a skyrmion shift device made of magnetic nanowires. The high-speed skyrmion motion is realized by utilizing the voltage shift, and the average skyrmion velocity reaches up to 259 m/s under 0.45 V applied voltage. In comparison with the widely studied vertical current-driven model, the energy dissipation is three orders of magnitude lower in our voltage-driven model, for the same speed motion of skyrmions. Our approach uncovers valuable opportunities for building skyrmion racetrack memories and logic devices with both ultra-low power consumption and ultra-high processing speed, which are appealing features for future spintronic applications.
References in corpus (34)
- 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
- Blowing Magnetic Skyrmion Bubbles
- Spin Transfer Torques in MnSi at Ultra-low Current Densities
- Micromagnetic understanding of current-driven domain wall motion in patterned nanowires
- Room temperature chiral magnetic skyrmion in ultrathin magnetic nanostructures
- Emergent electrodynamics of skyrmions in a chiral magnet
- Skyrmion confinement in ultrathin film nanostructures in the presence of Dzyaloshinskii-Moriya interaction
- Current-induced skyrmion dynamics in constricted geometries
- Dynamics of Skyrmion Crystals in Metallic Thin Films
- Field-Dependent Size and Shape of Single Magnetic Skyrmions
- 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
- A theory on skyrmion size and profile
- Electric field driven switching of individual magnetic skyrmions
- A reversible conversion between a skyrmion and a domain-wall pair in junction geometry
- Observation of magnetic excitations of skyrmion crystal in a helimagnetic insulator
- Thermally Driven Ratchet Motion of Skyrmion Microcrystal and Topological Magnon Hall Effect
- Laser-Induced Magnetic Nanostructures with Tunable Topological Properties
- Skyrmions with varying size and helicity in composition-spread helimagnetic alloys
- Dynamics of an Insulating Skyrmion under a Temperature Gradient
- Field-free deterministic ultra fast creation of skyrmions by spin orbit torques
- Magnetic skyrmion-based synaptic devices
- Voltage Controlled Magnetic Skyrmion Motion for Racetrack Memory
- The skyrmion switch: turning magnetic skyrmion bubbles on and off with an electric field
- Rotating skyrmion lattices by spin torques and field or temperature gradients
- Capturing of a Magnetic Skyrmion with a Hole
- Memory functions of magnetic skyrmions
- Electric-field control of the skyrmion lattice in Cu2OSeO3
- Origin of interfacial perpendicular magnetic anisotropy in MgO/CoFe/metallic capping layer structures
- AC current generation in chiral magnetic insulators and skyrmion motion induced by the spin Seebeck effect
- Motion of skyrmions in nanowires driven by magnonic momentum-transfer forces
- Mobile Néel skyrmions at room temperature: status and future
- Heterogeneous Memristive Devices Enabled by Magnetic Tunnel Junction Nanopillars Surrounded by Resistive Silicon Switches
Cited by in corpus (15)
- Statics and Dynamics of Skyrmions Interacting with Pinning: A Review
- Perspective on unconventional computing using magnetic skyrmions
- Formation of Néel Type Skyrmions in an Antidot Lattice with Perpendicular Magnetic Anisotropy
- Circuits and excitations to enable Brownian token-based computing with skyrmions
- Laminar and transiently disordered dynamics of a magnetic skyrmion pipe flow
- Probe Skyrmion phases and dynamics in MnSi via the magnetoelectric effect in a composite configuration
- Giant topological Hall effect in centrosymmetric tetragonal Mn2-xZnxSb
- Configurable pixelated skyrmions on nanoscale magnetic grids
- Fundamental Theory of Current-Induced Motion of Magnetic Skyrmions
- Chiral Edge Currents for ac Driven Skyrmions in Confined Pinning Geometries
- Magnetic skyrmion spectrum under voltage excitation and its linear modulation
- Steering skyrmions with microwave and THz electric pulses
- Length-scale independent skyrmion and meron Hall angles
- Positional stability of skyrmions in a racetrack memory with notched geometry
- Crescent domain-wall pairs in anisotropic two-dimensional MnOI monolayer with fast dynamics