Curvature induced chirality symmetry breaking in vortex core switching phenomena

Abstract

The interplay between magnetic vortex polarity, chirality and the curvature of the underlying surface results in a dependence of the vortex polarity switching efficiency on the vortex chirality. The switching is studied numerically by applying a short Gauss pulse of the external magnetic field to a spherical cap within its cut plane. The minimum field intensity required for the switching essentially depends on the vortex chirality and it does not depend on the initial vortex polarity. This effect decreases with the curvature radius increasing and it vanishes in the planar limit.

arXiv comment4 pages, 5 figures

References in corpus (5)

• A Frequency-Controlled Magnetic Vortex Memory
• Universal criterion and phase diagram for switching a magnetic vortex core in soft magnetic nanodots
• Memory-bit selective recording in vortex-core cross-point architecture
• Critical velocity for the vortex core reversal in perpendicular bias magnetic field
• Equilibrium states of soft magnetic hemispherical shell

Cited by in corpus (7)

• Micromagnetic Theory of Curvilinear Ferromagnetic Shells
• Curvature induced drift and deformation of magnetic skyrmions: comparison of ferro- and antiferromagnetic cases
• Curvature effects in vortex chirality switching
• Curvature-induced changes in the magnetic energy of vortices and skyrmions in paraboloidal nanoparticles
• Manipulating the shape of flexible magnetoelastic nanodiscs with meron-like magnetic states
• Atomic Layer Deposition of Yttrium Iron Garnet Thin Films for 3D Magnetic Structures
• Impact of curvature-induced Dzyaloshinskii-Moriya interaction on magnetic vortex texture in spherical caps