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A model for describing structural pointlike defects in nanoscaled ferromagnetic materials is presented. Its details are explicitly developed whenever it interacts with a vortexlike state comprised in a thin nanodisk. Among others, our model yields results for the vortex equilibrium position under the influence of several defects along with an external magnetic field that is shown to be in good qualitative agreement with experiments. We also discuss how such defects may affect the vortex motion, such as its gyrotropic oscillation and dynamical polarization reversal.
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Apolonio et al. (2009) studied this question.
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