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

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

1999-03-30

arxiv.org/abs/cond-mat/9903432v1

Physics

Condensed Matter

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

Scientific paper

10.1103/PhysRevB.61.9449

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.

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