Dynamics of Skyrmion crystals in metallic thin films.

Academic Article


  • We study the collective dynamics of the Skyrmion crystal in thin films of ferromagnetic metals resulting from the nontrivial Skyrmion topology. It is shown that the current-driven motion of the crystal reduces the topological Hall effect and the Skyrmion trajectories bend away from the direction of the electric current (the Skyrmion Hall effect). We find a new dissipation mechanism in noncollinear spin textures that can lead to a much faster spin relaxation than Gilbert damping, calculate the dispersion of phonons in the Skyrmion crystal, and discuss the effects of impurity pinning of Skyrmions.
  • Authors

  • Zang, Jiadong
  • Mostovoy, Maxim
  • Han, Jung Hoon
  • Nagaosa, Naoto
  • Status

    Publication Date

  • September 23, 2011
  • Has Subject Area

    Published In

    Digital Object Identifier (doi)

    Pubmed Id

  • 22026888
  • Start Page

  • 136804
  • Volume

  • 107
  • Issue

  • 13