Abstract
Directed motion of domain walls (DWs) in a classical biaxial ferromagnet placed under the influence of periodic unbiased external magnetic fields is investigated. Using the symmetry approach developed in this article the necessary conditions for the directed DW motion are found. This motion turns out to be possible if the magnetic field is applied along the easiest axis. The symmetry approach prohibits the directed DW motion if the magnetic field is applied along any of the hard axes. With the help of the soliton perturbation theory and numerical simulations, the average DW velocity as a function of different system parameters such as damping constant, amplitude, and frequency of the external field, is computed.
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Zolotaryuk, Y., Osmanov, M. Directed motion of domain walls in biaxial ferromagnets under the influence of periodic external magnetic fields. Eur. Phys. J. B 79, 257–262 (2011). https://doi.org/10.1140/epjb/e2010-10534-9
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DOI: https://doi.org/10.1140/epjb/e2010-10534-9