Nature Communications (Jun 2021)

Order-by-disorder from bond-dependent exchange and intensity signature of nodal quasiparticles in a honeycomb cobaltate

  • M. Elliot,
  • P. A. McClarty,
  • D. Prabhakaran,
  • R. D. Johnson,
  • H. C. Walker,
  • P. Manuel,
  • R. Coldea

DOI
https://doi.org/10.1038/s41467-021-23851-0
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 7

Abstract

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It was suggested that some 3d materials display bond-dependent exchange interactions, leading to exotic many-body effects. Here, using inelastic neutron scattering, the authors reveal such interactions in the stacked honeycomb magnet CoTiO3 and show how they induce a spectral gap and affect the Dirac magnon band structure.