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Can graphene set new standards?

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Very accurate measurements of the quantum Hall effect with massless particles in single sheets of carbon atoms could help metrologists in their efforts to improve the standard for electrical resistance, and possibly even redefine the kilogram.

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Figure 1: When the Hall resistance of a two-dimensional electron gas in an applied magnetic field is plotted as a function of the magnetic induction (centre), a series of plateaux are observed at RK/i, where RK is the von Klitzing constant and i is an integer.

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Authors and Affiliations

  1. Wilfrid Poirier and Félicien Schopfer are in the Quantum Metrology Group, Laboratoire National de Métrologie et d'Essais (LNE), 78197 Trappes Cedex, France. wilfrid.poirier@lne.fr; felicien.schopfer@lne.fr,

    Wilfrid Poirier & Félicien Schopfer

  2. felicien.schopfer@lne.fr,

    Wilfrid Poirier & Félicien Schopfer

Authors
  1. Wilfrid Poirier
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  2. Félicien Schopfer
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Poirier, W., Schopfer, F. Can graphene set new standards?. Nature Nanotech 5, 171–172 (2010). https://doi.org/10.1038/nnano.2010.40

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