Topological changes of two-dimensional magnetic textures

Ricardo Gabriel Elías (1) , Alberto Verga (2, 3)

1 Departamento de Fisica [USACH Santiago]
2 CPT - E5 Physique statistique et systèmes complexes
3 CPT - Centre de Physique Théorique - UMR 7332

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.

Domains: Physics [physics]; Condensed Matter [cond-mat]

Ricardo Gabriel Elías, Alberto Verga. Topological changes of two-dimensional magnetic textures. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2014, 89, pp.134405. ⟨10.1103/PhysRevB.89.134405⟩. ⟨hal-01500689⟩