Skyrmion-skyrmion interaction in a magnetic film.

  title={Skyrmion-skyrmion interaction in a magnetic film.},
  author={Daniel Capic and Dmitry A. Garanin and Eugene M. Chudnovsky},
  journal={Journal of physics. Condensed matter : an Institute of Physics journal},
Interaction of two skyrmions stabilized by the ferromagnetic exchange, Dzyaloshinskii-Moriya interaction (DMI), and external magnetic field has been studied numerically on a 2D lattice of size large compared to the separation, $d$, between the skyrmions. We show that two skyrmions of the same chirality (determined by the symmetry of the crystal) repel. In accordance with earlier analytical results, their long-range pair interaction falls out with the separation as $\exp(-d/\delta_H)$, where… Expand
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