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Topological changes of two-dimensional magnetic textures

Abstract : We investigate the interaction of magnetic vortices and skyrmions with a spin-polarized current. In a square lattice, fixed classical spins and quantum itinerant electrons evolve according to the coupled Landau-Lifshitz and Schrödinger equations. Changes in the topology occur at microscopic time and length scales and are shown to be triggered by the nucleation of a nontrivial electron-spin structure at the vortex core.
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Ricardo Elías, Alberto Verga. Topological changes of two-dimensional magnetic textures. Physical Review B: Condensed Matter and Materials Physics, American Physical Society, 2014, 89, pp.134405. ⟨10.1103/PhysRevB.89.134405⟩. ⟨hal-01500689⟩

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