Topological Magnons and Edge States in Antiferromagnetic Skyrmion Crystals.

  title={Topological Magnons and Edge States in Antiferromagnetic Skyrmion Crystals.},
  author={Sebasti{\'a}n A. D{\'i}az and Jelena Klinovaja and Daniel Loss},
  journal={Physical review letters},
  volume={122 18},
Antiferromagnetic skyrmion crystals are magnetic phases predicted to exist in antiferromagnets with Dzyaloshinskii-Moriya interactions. Their spatially periodic noncollinear magnetic texture gives rise to topological bulk magnon bands characterized by nonzero Chern numbers. We find topologically protected chiral magnonic edge states over a wide range of magnetic fields and Dzyaloshinskii-Moriya interaction values. Moreover, and of particular importance for experimental realizations, edge states… 

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