Dynamics of an insulating Skyrmion under a temperature gradient.

Academic Article


  • We study the Skyrmion dynamics in thin films under a temperature gradient. Our numerical simulations show that both single and multiple Skyrmions in a crystal move towards the high temperature region, which is contrary to particle diffusion. Noticing a similar effect in the domain wall motion, we employ a theory based on magnon dynamics to explain this counterintuitive phenomenon. Unlike the temperature driven domain wall motion, the Skyrmion's topological charge plays an important role, and a transverse Skyrmion motion is observed. Our theory turns out to be in agreement with numerical simulations, both qualitatively and quantitatively. Our calculation indicates that a very promising Skyrmion dynamic phenomenon can be observed in experiments.
  • Authors

  • Kong, Lingyao
  • Zang, Jiadong
  • Status

    Publication Date

  • August 9, 2013
  • Has Subject Area

    Published In


  • cond-mat.mes-hall
  • cond-mat.str-el
  • Digital Object Identifier (doi)

    Pubmed Id

  • 23971607
  • Start Page

  • 067203
  • Volume

  • 111
  • Issue

  • 6