Switching between different vortex states in 2-dimensional easy-plane magnets due to an ac magnetic field

Abstract

Using a discrete model of 2-dimensional easy-plane classical ferromagnets, we propose that a rotating magnetic field in the easy plane can switch a vortex from one polarization to the opposite one if the amplitude exceeds a threshold value, but the backward process does not occur. Such switches are indeed observed in computer simulations.

4 pages, 4 figures, submitted to Phys. Rev. Lett

References in corpus (2)

• Magnon modes and magnon-vortex scattering in two-dimensional easy-plane ferromagnets
• Finite temperature dynamics of vortices in the two dimensional anisotropic Heisenberg model

Cited by in corpus (8)

• Vortex polarity switching by a spin--polarized current
• Controlled vortex core switching in a magnetic nanodisk by a rotating field
• Controllable switching of vortex chirality in magnetic nanodisks by a field pulse
• Regular and chaotic vortex core reversal by a resonant perpendicular magnetic field
• Switching phenomena in magnetic vortex dynamics
• Vortex motion in a finite-size easy-plane ferromagnet and application to a nanodot
• Viscous dynamics of vortices in a ferromagnetic film
• Vortex Polarity Switching in Magnets with Surface Anisotropy