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

Yuri Gaididei·Till Kamppeter·Franz G. Mertens·A. R. Bishop
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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.

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Yuri Gaididei, Till Kamppeter, Franz G. Mertens, A. R. Bishop. 1999-03-30. Switching between different vortex states in 2-dimensional easy-plane magnets due to an ac magnetic field. https://doi.org/10.1103/physrevb.61.9449

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