Nature Communications (Nov 2022)

Engineering high quality graphene superlattices via ion milled ultra-thin etching masks

  • David Barcons Ruiz,
  • Hanan Herzig Sheinfux,
  • Rebecca Hoffmann,
  • Iacopo Torre,
  • Hitesh Agarwal,
  • Roshan Krishna Kumar,
  • Lorenzo Vistoli,
  • Takashi Taniguchi,
  • Kenji Watanabe,
  • Adrian Bachtold,
  • Frank H. L. Koppens

DOI
https://doi.org/10.1038/s41467-022-34734-3
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 7

Abstract

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Focused-ion beam (FIB) lithography enables high-resolution nanopatterning of 2D materials, but usually introduces significant damage. Here, the authors report a FIB-based fabrication technique to obtain high quality graphene superlattices with 18-nm pitch, which exhibit electronic transport properties similar to those of natural moiré systems.