Magnonic triply-degenerate nodal points

@article{Owerre2017MagnonicTN,
  title={Magnonic triply-degenerate nodal points},
  author={S A Owerre},
  journal={arXiv: Strongly Correlated Electrons},
  year={2017}
}
  • S. Owerre
  • Published 31 October 2017
  • Physics
  • arXiv: Strongly Correlated Electrons
We generalize the concept of triply-degenerate nodal points to non-collinear antiferromagnets. Here, we introduce this concept to insulating quantum antiferromagnets on the decorated honeycomb lattice, with spin-$1$ bosonic quasiparticle excitations known as magnons. We demonstrate the existence of magnonic surface states with constant energy contours that form pairs of magnonic arcs connecting the surface projection of the magnonic triple nodal points. The quasiparticle excitations near the… 

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