Nature Communications (Mar 2020)

Massive and massless charge carriers in an epitaxially strained alkali metal quantum well on graphene

  • Martin Hell,
  • Niels Ehlen,
  • Giovanni Marini,
  • Yannic Falke,
  • Boris V. Senkovskiy,
  • Charlotte Herbig,
  • Christian Teichert,
  • Wouter Jolie,
  • Thomas Michely,
  • Jose Avila,
  • Giovanni Di Santo,
  • Diego M. de la Torre,
  • Luca Petaccia,
  • Gianni Profeta,
  • Alexander Grüneis

DOI
https://doi.org/10.1038/s41467-020-15130-1
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 11

Abstract

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Cesium atoms that are grown on intercalated bilayer graphene can create an ordered epitaxial film. Here, the authors report that such a strained film can host quantum well states with high electronic quality as characterized through angle-resolved photoemission spectroscopy.