Nature Communications (May 2021)

Evolution of spin excitations from bulk to monolayer FeSe

  • Jonathan Pelliciari,
  • Seher Karakuzu,
  • Qi Song,
  • Riccardo Arpaia,
  • Abhishek Nag,
  • Matteo Rossi,
  • Jiemin Li,
  • Tianlun Yu,
  • Xiaoyang Chen,
  • Rui Peng,
  • Mirian García-Fernández,
  • Andrew C. Walters,
  • Qisi Wang,
  • Jun Zhao,
  • Giacomo Ghiringhelli,
  • Donglai Feng,
  • Thomas A. Maier,
  • Ke-Jin Zhou,
  • Steven Johnston,
  • Riccardo Comin

DOI
https://doi.org/10.1038/s41467-021-23317-3
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 8

Abstract

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Here, Pelliciari et al. present resonant inelastic X-ray scattering on monolayer samples of unconventional superconductor FeSe, finding evidence for gapped and dispersionless spin excitations. These experiments are very difficult due to the extremely small scattering volume of the FeSe monolayer.