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We have performed an experimental and modeling-based study of the spin-orbittorque-induced growth of magnetic stripe domains in heavy metal/ferromagnetthin-film heterostructures that possess chiral N\'eel-type domain walls due toan interfacial Dzyaloshinskii-Moriya interaction. In agreement with previousreports, the stripe domains stabilized in these systems exhibit a significanttransverse growth velocity relative to the applied current axis. This behaviorhas previously been attributed to the Magnus force-like skyrmion Hall effect ofthe stripe domain spin topology, which is analogous to that of a half-skyrmion.However, through analytic modeling of the in-plane torques generated byspin-orbit torque, we find that a dynamical reconfiguration of the domain wallmagnetization profile is expected to occur - promoting motion with similardirectionality and symmetry as the skyrmion Hall effect. These results furtherhighlight the sensitivity of spin-orbit torque to the local orientation of thedomain wall magnetization profile and its contribution to domain growthdirectionality.

Impacts of the half-skyrmion spin topology, spin-orbit torque, and dynamic symmetry breaking on the growth of magnetic stripe domains