Planar Topological Hall Effect from Conical Spin Spirals

Abstract

Planar Topological Hall effect (PTHE) is known to arise from in-plane skyrmion tubes with an external magnetic field applied in the plane of the charge current. Here, we propose that the PTHE can robustly appear also from an unexpected source, the conical spin spiral, realizable in a variety of materials. We show that for both in-plane skyrmion tubes and conical spin spirals, the PTHE is two-fold symmetric with respect to the magnetic-field angle, while it is four-fold symmetric for 90${}^{\circ }$-rotated domains of conical spin spirals. We predict that the symmetry and magnetic-field response of the PTHE can distinguish between the two scenarios, unambiguously probing the nature of the antisymmetric spin-exchange interaction and the resulting magnetic texture.

arXiv comment6 pages, 5 figures

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Cited by in corpus (7)

• Skyrmion Control of Majorana States in Planar Josephson Junctions
• Planar Topological Hall Effect from Conical Spin Spirals
• Signatures of a liquid-crystal transition in spin-wave excitations of skyrmions
• Interfacial phase frustration stabilizes unconventional skyrmion crystals
• Planar topological Hall effect in a hexagonal ferromagnetic Fe5Sn3 single crystal
• Anomalous magnetoentropic response of skrymion crystals
• Emergence of a spin Hall topological Hall effect in the non-collinear phase of the ferrimagnetic insulator terbium-iron garnet