Stabilization of the skyrmion crystal phase in thin-film antiferromagnets
arXiv:1806.06450 · doi:10.1103/PhysRevB.100.100408
Abstract
We investigate the formation and stability of the skyrmion crystal phase in antiferromagnetic thin films subjected to fieldlike torques such as, e.g., those induced by an electric current in CuMnAs and MnAu via the inverse spin-galvanic effect. We show that the skyrmion lattice represents the ground state of the antiferromagnet in a substantial area of the phase diagram, parametrized by the staggered field and the (effective) uniaxial anisotropy constant. Skyrmion motion can be driven in the crystal phase by the spin transfer effect. In the metallic scenario, itinerant electrons experience an emergent SU-electromagnetic field associated with the (Néel) skyrmion background, leading to a topological spin-Hall response. Experimental signatures of the skyrmion crystal phase and readout schemes based on topological transport are discussed.
arXiv comment5+5 pages
References in corpus (46)
- Skyrmion Lattice in a Chiral Magnet
- Antiferromagnetic spintronics
- Shot Noise in Mesoscopic Conductors
- Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
- Electrical switching of an antiferromagnet
- Blowing Magnetic Skyrmion Bubbles
- Direct Observation of the Skyrmion Hall Effect
- Skyrmion Hall Effect Revealed by Direct Time-Resolved X-Ray Microscopy
- Magnetic skyrmion logic gates: conversion, duplication and merging of skyrmions
- Elastic theory of flux lattices in presence of weak disorder
- Static and Dynamical Properties of Antiferromagnetic Skyrmions in the Presence of Applied Current and Temperature
- Robust isothermal electric switching of interface magnetization: A route to voltage-controlled spintronics
- Topological Hall effect and Berry phase in magnetic nanostructures
- Relativistic Neel-order fields induced by electrical current in antiferromagnets
- Antiferromagnetic Skyrmion: Stability, Creation and Manipulation
- Determination of the Spin-Hall-Effect-Induced and the Wedged-Structure-Induced Spin Torque Efficiencies in Heterostructures with Perpendicular Magnetic Anisotropy
- A reversible conversion between a skyrmion and a domain-wall pair in junction geometry
- Particle model for skyrmions in metallic chiral magnets: dynamics, pinning and creep
- Magnetic structures and reorientation transitions in noncentrosymmetric uniaxial antiferromagnets
- Electrical detection of magnetic skyrmions by non-collinear magnetoresistance
- Antiferromagnetic skyrmion crystals: generation, topological Hall and topological spin Hall effect
- Path to collapse for an isolated Néel skyrmion
- Enhanced Stability of Skyrmions in Two-Dimensional Chiral Magnets with Rashba Spin-Orbit Coupling
- Spin waves in a skyrmion crystal
- Phenomenology of current-induced skyrmion motion in antiferromagnets
- Theory of Topological Spin Hall Effect in Antiferromagnetic Skyrmion: Impact on Current-induced Motion
- Theory of spin Hall effect
- Stability and lifetime of antiferromagnetic skyrmions
- Dynamical defects in rotating magnetic skyrmion lattices
- Electron Dynamics in Slowly Varying Antiferromagnetic Texture
- Magnetoelectric domain wall dynamics and its implications for magnetoelectric memory
- Skyrmions in square-lattice antiferromagnets
- Thermophoresis of an Antiferromagnetic Soliton
- Current-induced noise and damping in non-uniform ferromagnets
- Theory of spin magnetohydrodynamics
- Dislocations and Bragg glasses in two dimensions
- Melting of two dimensional solids on disordered substrate
- Antiferromagnetic textures and dynamics on the surface of a heavy metal
- Dynamics and inertia of a skyrmion in chiral magnets and interfaces: A linear response approach based on magnon excitations
- Energy Storage via Topological Spin Textures
- Physical properties of the tetragonal CuMnAs: a first-principles study
- Topological spin-transfer drag driven by skyrmion diffusion
- Electric voltage generation by antiferromagnetic dynamics
- Dissipative dynamics of magnetic solitons in metals
- Magnetoelectric antiferromagnets as platforms for the manipulation of solitons
- Gyrotropic elastic response of skyrmion crystals to current-induced tensions
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- Spirals and skyrmions in antiferromagnetic triangular lattices
- Emergence of zero-field non-synthetic single and interchanged antiferromagnetic skyrmions in thin films
- Magnon Landau Levels and Spin Responses in Antiferromagnets
- Magnetic dynamics with Weyl fermions
- Skyrmion lattice hosted in synthetic antiferromagnets and helix modes
- Antiferro skyrmion crystal phases in a synthetic bilayer antiferromagnet under an in-plane magnetic field
- Enhanced Stability of Antiferromagnetic Skyrmion during Its Motion by Anisotropic Dzyaloshinskii Moriya Interaction