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      The design and verification of MuMax3

      , , , , ,
      AIP Advances
      AIP Publishing

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          Dynamics of Dzyaloshinskii domain walls in ultrathin magnetic films

          We explore a new type of domain wall structure in ultrathin films with perpendicular anisotropy, that is influenced by the Dzyaloshinskii-Moriya interaction due to the adjacent layers. This study is performed by numerical and analytical micromagnetics. We show that these walls can behave like Neel walls with very high stability, moving in stationary conditions at large velocities under large fields. We discuss the relevance of such walls, that we propose to call Dzyaloshinskii domain walls, for current-driven domain wall motion under the spin Hall effect.
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            Roles of non-equilibrium conduction electrons on magnetization dynamics of ferromagnets

            S. Zhang, Z Li (2004)
            The mutual dependence of spin-dependent conduction and magnetization dynamics of ferromagnets provides the key mechanisms in various spin-dependent phenomena. We compute the response of the conduction electron spins to a spatial and time varying magnetization \({\bf M} ({\bf r},t)\) within the time-dependent semiclassical transport theory. We show that the induced non-equilibrium conduction spin density in turn generates four spin torques acting on the magnetization--with each torque playing different roles in magnetization dynamics. By comparing with recent theoretical models, we find that one of these torques that has not been previously identified is crucial to consistently interpret experimental data on domain wall motion.
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              Chiral symmetry breaking in magnetic thin films and multilayers.

              A phenomenological theory of chiral symmetry breaking in magnetic nanostructures is developed considering induced, inhomogeneous chiral interactions (Dzyaloshinsky-Moriya-type). Application of the theory to films and multilayers with in-plane and out-of-plane magnetization predicts modulated and two-dimensional localized patterns (vortices). These new classes of magnetic patterns are intrinsically stable and localized on nanometer scale. Various experimental observations agree qualitatively with structures derived from this theory.
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                Author and article information

                Journal
                AIP Advances
                AIP Advances
                AIP Publishing
                2158-3226
                October 2014
                October 2014
                : 4
                : 10
                : 107133
                Article
                10.1063/1.4899186
                5dcaea4b-1afb-4292-8dff-f3d6f2e857c1
                © 2014
                History

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