Nature Communications (Nov 2022)

Emergent many-body composite excitations of interacting spin-1/2 trimers

  • Anup Kumar Bera,
  • S. M. Yusuf,
  • Sudip Kumar Saha,
  • Manoranjan Kumar,
  • David Voneshen,
  • Yurii Skourski,
  • Sergei A. Zvyagin

DOI
https://doi.org/10.1038/s41467-022-34342-1
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 8

Abstract

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It was recently predicted that, in addition to well-known spinon excitations, a 1D spin-trimer chain with periodic exchange couplings hosts novel composite excitations. Bera et al. experimentally demonstrate and characterize such excitations, termed doublons and quartons, in a spin-trimer compound Na2Cu3Ge4O12.