Tailoring Helicity Angle of Twisted Skyrmions in Multilayered Nanostructures

Abstract

Twisted skyrimons (TSs) are intermediate states between Bloch skyrmions and Néel skyrmions, and can emerge in multilayered systems due to the competition between Dzyaloshinskii–Moriya interaction and magnetic dipole–dipole interaction. Herein, TSs are investigated in terms of helicity angle variation and layer dependence in both three layer and general multilayer nanostructures. The tailoring of helicity angle from 0 to π is achieved by stacking the number of magnetic layers and controlling the relative position of each layer. In addition, the precise spatial range where TSs exist stably and the influence of layer and spacer thickness are also discussed. The results provide a fundamental understanding of TSs in multilayered nanostructures, which is significant for the development of skyrmion‐based devices.