Two-channel anomalous Hall effect in SrRuO3

Abstract

The Hall effect in SrRuO${}_3$ thin-films near the thickness limit for ferromagnetism shows an extra peak in addition to the ordinary and anomalous Hall effects. This extra peak has been attributed to a topological Hall effect due to two-dimensional skyrmions in the film around the coercive field; however, the sign of the anomalous Hall effect in SrRuO${}_3$ can change as a function of saturation magnetization. Here we report Hall peaks in SrRuO${}_3$ in which volumetric magnetometry measurements and magnetic force microscopy indicate that the peaks result from the superposition of two anomalous Hall channels with opposite sign. These channels likely form due to thickness variations in SrRuO${}_3$, creating two spatially separated magnetic regions with different saturation magnetizations and coercive fields. The results are central to the development of strongly correlated materials for spintronics.

arXiv commentMain: 7 pages, 6 figures. Supplementary: 10 pages, 12 figures

References in corpus (18)

• Anomalous Hall Effect and Magnetic Monopoles in Momentum-Space
• Anomalous Hall effect in ferromagnetic semiconductors
• Topological Hall effect and Berry phase in magnetic nanostructures
• Interface-driven topological Hall effect in SrRuO${}_3$-SrIrO${}_3$ bilayer
• Topological Nature of Anomalous Hall Effect in Ferromagnet
• Electric-field control of anomalous and topological Hall effects in oxide bilayer thin films
• Scaling of the anomalous Hall effect in Sr${}_{1-x}$Ca${}_x$RuO${}_3$
• Electric-field Control of Magnetism with Emergent Topological Hall Effect in SrRuO3 through Proton Evolution
• An alternative to the topological interpretation of the transverse resistivity anomalies in SrRuO3
• Spin chirality fluctuation in two-dimensional ferromagnets with perpendicular anisotropy
• Controllable thickness inhomogeneity and Berry-curvature-engineering of anomalous Hall effect in SrRuO3 ultrathin films
• Concurrence of Quantum Anomalous Hall and Topological Hall Effects in Magnetic Topological Insulator Sandwich Heterostructures
• Magnetic imaging of antiferromagnetic domain walls
• Interpretation of experimental evidence of the topological Hall effect
• Oxygen-Octahedral-Tilting-Driven Topological Hall Effect in Ultrathin SrRuO3 Films
• Scaling of the anomalous Hall effect in SrRuO${}_3$
• Hump-like structure in Hall signal from SrRuO${}_3$ ultra-thin films without inhomogeneous anomalous Hall effect
• Step velocity tuning of SrRuO3 step flow growth on SrTiO3

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