Discretized Topological Hall Effect Emerging from Skyrmions in Constricted Geometry

Abstract

We investigate the skyrmion formation process in nano-structured FeGe Hall-bar devices by measurements of topological Hall effect, which extracts the winding number of a spin texture as an emergent magnetic field. Step-wise profiles of topological Hall resistivity are observed in the course of varying the applied magnetic field, which arise from instantaneous changes in the magnetic nano-structure such as creation, annihilation, and jittering motion of skyrmions. The discrete changes in topological Hall resistivity demonstrate the quantized nature of emergent magnetic flux inherent in each skyrmion, which had been indistinguishable in many-skyrmion systems on a macroscopic scale.

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Cited by in corpus (45)

• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Room-temperature current-induced generation and motion of sub-100nm skyrmions
• Electrical signature of individual magnetic skyrmions in multilayered systems
• Skyrmion dynamics in a frustrated ferromagnetic film and current-induced helicity locking-unlocking transition
• Giant topological Hall effect in correlated oxide thin films
• Memory functions of magnetic skyrmions
• Chiral magnetic textures in Ir/Fe/Co/Pt multilayers: Evolution and topological Hall signature
• Robust Zero-Field Skyrmion Formation in FeGe Epitaxial Thin Films
• Thermal generation, manipulation and detection of skyrmions
• Field induced topological Hall effect in non-coplanar triangular antiferromagnetic geometry of Mn3Sn
• Dimensional Crossover Induced Topological Hall Effect in a Magnetic Topological Insulator
• Bound states of skyrmions and merons near the Lifshitz point
• Perpendicular Reading of Single Confined Magnetic Skyrmions
• Discrete Hall resistivity contribution from Néel skyrmions in multilayer nanodiscs
• Chirality as Generalized Spin-Orbit Interaction in Spintronics
• Interpretation of experimental evidence of the topological Hall effect
• Helical magnetic structure and the anomalous and topological Hall effects in epitaxial B20 Fe${}_{1-y}$Co${}_y$Ge films
• General theory of topological Hall effect in systems with chiral spin textures
• Topological Hall and Spin Hall Effects in Disordered Skyrmionic Textures
• Purely electrical detection of a skyrmion in constricted geometry
• Formation of In-plane Skyrmions in Epitaxial MnSi Thin Films as Revealed by Planar Hall Effect
• Detection of antiskyrmions by topological Hall effect in Heusler compounds
• Distinguishing two-component anomalous Hall effect from topological Hall effect
• Scattering on magnetic skyrmion in the non-adiabatic approximation
• Degeneracies and fluctuations of Néèl skyrmions in confined geometries
• Skyrmion Topological Hall Effect near Room Temperature
• Observation of Topological Hall Effect and Signature of Room Temperature Antiskyrmions in Mn-Ni-Ga D2d Heusler magnets
• A nontrivial crossover in topological Hall effect regimes
• Chiral magnetic excitations in FeGe films
• Large topological Hall effect in an easy-cone ferromagnet (Cr0.9B0.1)Te
• Molecular Beam Epitaxy Growth of [CrGe/MnGe/FeGe] Superlattices: Toward Artificial B20 Skyrmion Materials with Tunable Interactions
• Electronic scattering off a magnetic hopfion
• Tuning of topological properties in the strongly correlated antiferromagnet Mn${}_3$Sn via Fe doping
• Fluctuation-driven topological Hall effect in room-temperature itinerant helimagnet Fe3Ga4
• Topological Hall effect in diffusive ferromagnetic thin films with spin-flip scattering
• Detection of Topological Spin Textures via Non-Linear Magnetic Responses
• Proposal for all-electrical skyrmion detection in van der Waals tunnel junctions
• Berry Curvature and Topological Hall Effect in Magnetic Nanoparticles
• Topological Hall effect for electron scattering on skyrmions in external magnetic field
• High Figure of Merit Magneto Optics from Interfacial Skyrmions on Topological Insulators
• Theory of an electron asymmetric scattering on skyrmion textures in two-dimensional systems
• Tuning of Electrical, Magnetic, and Topological Properties of Magnetic Weyl Semimetal Mn${}_{3+x}$Ge by Fe doping
• Topological Aspects of Antiferromagnets
• Topological Hall effect enhanced at magnetic transition fields in a frustrated magnet EuCd${}_2$
• Correlating on-the-fly Electrical and Optical Skyrmion Readout