Skyrmions in magnetic materials

Abstract

Skyrmions are vortex-like textures of magnetic moments found in some magnetically ordered materials. Here we describe the origin of the skyrmion and discuss the experimental realization of skyrmions in magnetic materials, the dynamic properties of the skyrmion and the potentially useful interaction of skyrmions with electrons. Our discussion is based on the physics of fields and allows us to touch on notions from field theory and topology that illustrate how skyrmions can be understood as part of a family of defects in an ordered field, and hint at other topological objects that await our discovery.

arXiv comment23 pages, 8 figures

References in corpus (9)

• Skyrmion Lattice in a Chiral Magnet
• Spin Transfer Torques in MnSi at Ultra-low Current Densities
• Emergent electrodynamics of skyrmions in a chiral magnet
• Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
• Discovery of Magnetic Antiskyrmions Beyond Room Temperature in Tetragonal Heusler Materials
• Skyrmion Lattice in a Doped Semiconductor
• Observation of magnetic excitations of skyrmion crystal in a helimagnetic insulator
• Robust metastable skyrmions and their triangular-square lattice-structural transition in a high-temperature chiral magnet
• Skyrmion fractionalization and merons in chiral magnets with easy-plane anisotropy

Cited by in corpus (23)

• The Double-$Q$ Ground State with Topological Charge Stripes in the Skyrmion Candidate ${\text{GdRu}}_{\text{2}}{\text{Si}}_{\text{2}}$
• Experimental signatures of quantum and topological states in frustrated magnetism
• DFT+μ: Density Functional Theory for Muon Site Determination
• Controlled creation of nanometric skyrmions using external magnetic fields
• Megahertz dynamics in skyrmion systems probed with muon-spin relaxation
• Emergent particles and gauge fields in quantum matter
• Anisotropic skyrmion and multi-$q$ spin dynamics in centrosymmetric Gd${}_2$PdSi${}_3$
• Magnetism and Néel skyrmion dynamics in GaV${}_4$S${}_{8-y}$Se${}_y$
• DC spinmotive force from microwave-active resonant dynamics of skyrmion crystal under a tilted magnetic field
• Selective Activation of an Isolated Magnetic Skyrmion in a Ferromagnet with Microwave Electric Fields
• Micromagnetic modelling and imaging of vortex|merons structures in an oxide|metal heterostructure
• Field-orientation-dependent magnetic phases in GdRu${}_2$Si${}_2$ probed with muon-spin spectroscopy
• Experimental Evidence of a change of Exchange Anisotropy Sign with Temperature in Zn-Substituted Cu2OSeO3
• Energy-gap driven low-temperature magnetic and transport properties in Cr${}_{1/3}M$S${}_2$ ($M$ = Nb or Ta)
• Confinement of Skyrmions in Nanoscale FeGe Device-like Structures
• Investigation of the magnetic ground state of GaV${}_4$S${}_8$ using powder neutron diffraction
• The Emergence of Electroweak Skyrmions through Higgs Bosons
• Topological electronic bands in crystalline solids
• Spin dynamics in bulk MnNiGa and Mn${}_{1.4}$Pt${}_{0.9}$Pd${}_{0.1}$Sn investigated by muon spin relaxation
• A Magnon Band Analysis of GdRu2Si2 in the Field-Polarized State
• Structure and magnetism of the skyrmion hosting family GaV${}_4$S${}_{8-y}$Se${}_y$ with low levels of substitutions between $0\le y\le 0.5$ and $7.5\le y\le 8$
• A computational mean-field model of interacting non-collinear classical spins
• Single-ion anisotropy driven chiral magnetic order in a spin-1 antiferromagnetic chain