Perpendicular Reading of Single Confined Magnetic Skyrmions

Abstract

Thin-film sub-5 nm magnetic skyrmions constitute an ultimate scaling alternative for future digital data storage. Skyrmions are robust non-collinear spin-textures that can be moved and manipulated by small electrical currents. We show here an innovative technique to detect isolated nanoskyrmions with a current-perpendicular-to-plane geometry, which has immediate implications for device concepts. We explore the physics behind such a mechanism by studying the atomistic electronic structure of the magnetic quasiparticles. We investigate how the isolated skyrmion local-density-of-states which tunnels into the vacuum, when compared to the ferromagnetic background, is modified by the site-dependent spin-mixing of electronic states with different relative canting angles. Local transport properties are sensitive to this effect, as we report an atomistic conductance anisotropy of over 20% for magnetic skyrmions in Pd/Fe/Ir(111) thin-films. In single skyrmions, engineering this spin-mixing magnetoresistance possibly could be incorporated in future magnetic storage technologies.

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Cited by in corpus (50)

• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Skyrmion-electronics: Writing, deleting, reading and processing magnetic skyrmions toward spintronic applications
• Electrical signature of individual magnetic skyrmions in multilayered systems
• Antiskyrmions stabilized at interfaces by anisotropic Dzyaloshinskii-Moriya interaction
• Voltage Controlled Magnetic Skyrmion Motion for Racetrack Memory
• Current-Driven Dynamics of Magnetic Hopfions
• Thermally stable magnetic skyrmions in multilayer synthetic antiferromagnetic racetracks
• Isolated zero field sub-10 nm skyrmions in ultrathin Co films
• Asymmetric hysteresis for probing Dzyaloshinskii-Moriya interaction
• Complex magnetic phase diagram and skyrmion lifetime in an ultrathin film from atomistic simulations
• Chirality-driven orbital magnetic moments as a new probe for topological magnetic structures
• Impact of the skyrmion spin texture on magnetoresistance
• Mechanisms of skyrmion collapse revealed by sub-nm maps of the transition rate
• Purely electrical detection of a skyrmion in constricted geometry
• Modeling the shape of axisymmetric skyrmions in magnetic multilayers
• Nonreciprocity of spin waves in noncollinear magnets due to the Dzyaloshinskii-Moriya interaction
• Interfacial Dzyaloshinskii-Moriya Interaction of Antiferromagnetic Materials
• Bilayer-skyrmion-based design of neuron and synapse for spiking neural network
• Transverse Transport in Two-Dimensional Relativistic Systems with Non-Trivial Spin Textures
• Modelling spin waves in noncollinear antiferromagnets: spin-flop states, spin spirals, skyrmions and antiskyrmions
• Emergence of zero-field non-synthetic single and interchanged antiferromagnetic skyrmions in thin films
• Towards skyrmion-superconductor hybrid systems
• Combined Magnetic Imaging and Anisotropic Magnetoresistance Detection of Dipolar Skyrmions
• Chiral magnetism of magnetic adatoms generated by Rashba electrons
• Spin-orbit enabled all-electrical readout of chiral spin-textures
• Complex magnetism of B20-MnGe: from spin-spirals, hedgehogs to monopoles
• Stability of Hopfions in Bulk Magnets with Competing Exchange Interactions
• Magnetic Skyrmion Transport in a Nanotrack With Spatially Varying Damping and Non-adiabatic Torque
• Controlling the nucleation and annihilation of skyrmions with magnetostatic interactions
• Current-driven motion of magnetic domain-wall skyrmions
• Proposal for all-electrical skyrmion detection in van der Waals tunnel junctions
• Skyrmion meets magnetic tunnel junction: an efficient way for electrical skyrmion detection investigated by ab initio theory
• Friedel oscillations induced by magnetic skyrmions: from scattering properties to all-electrical detection
• SP-STM study of the multi-Q phases in GdRu2Si2
• A spin model for intrinsic antiferromagnetic skyrmions on a triangular lattice
• Spin-wave mediated interactions for Majority Computation using Skyrmions and Spin-torque Nano-oscillators
• Complex magnetism of the two-dimensional antiferromagnetic Ge2F: from a Néel spin-texture to a potential antiferromagnetic skyrmion
• Noncollinear spin density of an adatom on a magnetic surface
• Unoccupied surface and interface states in Pd thin films deposited on Fe/Ir(111) surface
• High-resolution combined tunneling electron charge and spin transport theory of Néel and Bloch skyrmions
• Composite Skyrmion bags in two-dimensional materials
• Insights into the orbital magnetism of noncollinear magnetic systems
• Magnetoelectric imprint of skyrmions in van der Waals bilayers
• Theory of high-resolution tunneling spin transport on a magnetic skyrmion
• Hybrid micromagnetic and atomistic modeling of magnetization dynamics induced by engineered defects
• Universality of defect-skyrmion interaction profiles
• The Non-collinear Path to Topological Superconductivity
• Nanoscale Skyrmions on a Square Atomic Lattice
• Interplay of magnetic states and hyperfine fields of iron dimers on MgO(001)
• Strongly enhanced lifetime of higher-order bimerons and antibimerons