Abstract
We study the motion of a small-angle domain wall (DW) in a rhombic ferromagnet with localized attracting inhomogeneities in the vicinity of the reorientational phase transition induced by temperature. Usually DW can be trapped by the inhomogeneities. If the system is additionally driven by noisy magnetic field the DW is able to perform stochastic motion and hence there is a nonzero probability of DW jumps between several attracting inhomogeneities. With small periodic magnetic field applied to the system we will observe stochastic resonance in the motion of the DW. At an optimal noise level the hopping dynamics of the DW becomes most coherent and the response of the system to the periodic force is maximal.
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