Análise estrutural e dinâmica de skyrmions via simulação computacional aplicados em nanofitas de Co/Pt

Abstract

Skyrmions are considered promising candidates for replacing current magnetic recording methods because of their stability and being easily controlled by a polarized spin current.On this, it is necessary to understand the behavior of this quasiparticle in magnetic nanowires during its dynamics.We perform micromagnetic simulations to understand the movement of a skyrmion initially centered on a magnetic nanowire from the application of polarized spin current.With the result of the simulations, we use a bioinspired algorithm known in the literature as the Frog Method to accurately determine the position of the skyrmion during its dynamics.In addition, changes were observed in the structure of the skyrmion, such as the radius, the topological load and the components of the dissipative tensor, when it approached the limits of the nanofite.Finally, we also studied the interaction energy between the skyrmion and the edge of the nanowire.