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A double-helix dislocation in graphene

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By means of a precise folding–tearing process, screw dislocations with helical cores — appearing in pairs and taking on a DNA-like double-helix structure — are engineered to control the growth of twisted bilayer graphene.

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Fig. 1: Key sequence to stabilize two screw dislocations with opposite signs.

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Authors and Affiliations

  1. Department of Physics, IriG, Univ. Grenoble-Alpes and CEA, Grenoble, France

    Pascal Pochet

  2. Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA

    Harley T. Johnson

  3. Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, USA

    Harley T. Johnson

  4. Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA

    Harley T. Johnson

Authors
  1. Pascal Pochet
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  2. Harley T. Johnson
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Correspondence to Harley T. Johnson.

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The authors declare no competing interests.

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Pochet, P., Johnson, H.T. A double-helix dislocation in graphene. Nat. Mater. 23, 306–307 (2024). https://doi.org/10.1038/s41563-023-01654-6

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