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      Role of nonlinear anisotropic damping in the magnetization dynamics of topological solitons

      Physical Review B

      American Physical Society (APS)

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          Skyrmions on the track.

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            Classics in Magnetics A Phenomenological Theory of Damping in Ferromagnetic Materials

             T.L. Gilbert (2004)
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              Nucleation, stability and current-induced motion of isolated magnetic skyrmions in nanostructures.

              Magnetic skyrmions are topologically stable spin configurations, which usually originate from chiral interactions known as Dzyaloshinskii-Moriya interactions. Skyrmion lattices were initially observed in bulk non-centrosymmetric crystals, but have more recently been noted in ultrathin films, where their existence is explained by interfacial Dzyaloshinskii-Moriya interactions induced by the proximity to an adjacent layer with strong spin-orbit coupling. Skyrmions are promising candidates as information carriers for future information-processing devices due to their small size (down to a few nanometres) and to the very small current densities needed to displace skyrmion lattices. However, any practical application will probably require the creation, manipulation and detection of isolated skyrmions in magnetic thin-film nanostructures. Here, we demonstrate by numerical investigations that an isolated skyrmion can be a stable configuration in a nanostructure, can be locally nucleated by injection of spin-polarized current, and can be displaced by current-induced spin torques, even in the presence of large defects.
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                Author and article information

                Journal
                PRBMDO
                Physical Review B
                Phys. Rev. B
                American Physical Society (APS)
                1098-0121
                1550-235X
                July 2015
                July 21 2015
                : 92
                : 1
                Article
                10.1103/PhysRevB.92.014418
                © 2015
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