Interpretation of experimental evidence of the topological Hall effect

Abstract

The topological Hall effect in magnetic materials is considered the ultimate trademark of the skyrmion phase. The phenomenon is identified by distinct non-monotonic features in the Hall effect signal presumed to be the evidence of the topological origin. It is demonstrated here that similar features, unrelated to the skyrmion physics, arise in heterogeneous ferromagnets when components of the material exhibit the extraordinary Hall effect with opposite polarities. Relevance of this mechanism to the published data is discussed.

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Cited by in corpus (22)

• Crystal Hall effect in Collinear Antiferromagnets
• Electric-field Control of Magnetism with Emergent Topological Hall Effect in SrRuO3 through Proton Evolution
• Controllable thickness inhomogeneity and Berry-curvature-engineering of anomalous Hall effect in SrRuO3 ultrathin films
• Two-channel anomalous Hall effect in SrRuO3
• Distinguishing two-component anomalous Hall effect from topological Hall effect
• Observation of colossal topological Hall effect in noncoplanar ferromagnet Cr5Te6 thin films
• Inhomogeneous ferromagnetism mimics signatures of the topological Hall effect in SrRuO${}_3$ films
• Gradient-induced Dzyaloshinskii-Moriya interaction
• Berry phase manipulation in ultrathin SrRuO${}_3$ films
• Large topological Hall effect in an easy-cone ferromagnet (Cr0.9B0.1)Te
• Origin of the hump anomalies in the Hall resistance loops of ultrathin SrRuO${}_3$/SrIrO${}_3$ multilayers
• Metamagnetic multiband Hall effect in Ising antiferromagnet ErGa${}_2$
• Domain wall skew scattering in ferromagnetic Weyl metals
• Anomalous Kerr Effect in SrRuO${}_3$ Thin Films
• Resonant optical topological Hall conductivity from skyrmions
• Topological phase transitions and Berry-phase hysteresis in exchange-coupled nanomagnets
• Intra-unitcell cluster-cluster magnetic compensation and large exchange bias in cubic alloys
• Nonvolatile ferroelectric field control of the anomalous Hall effect in BiFeO3/SrRuO3 bilayer
• Bounds and anomalies of inhomogeneous anomalous Hall effects
• Measuring the Hall effect in hysteretic materials
• Intrinsic Topological Weyl Phase Transition Induced by a Magnetostructural Transformation in a Kagome Magnet
• Topological Hall Effect Induced by Chiral Spin Textures at the Ferroelectric/Ferromagnetic Interface