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  • PhysRevB.87.245408

    Rights statement: ©2013 American Physical Society

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Generic miniband structure of graphene on a hexagonal substrate

Research output: Contribution to journalJournal article

  • John Wallbank
  • A. A. Patel
  • Marcin Mucha-Kruczynski
  • A. K. Geim
  • Vladimir Falko
Article number245408
<mark>Journal publication date</mark>4/06/2013
<mark>Journal</mark>Physical Review B
Issue number24
Number of pages7
<mark>Original language</mark>English


Using a general symmetry-based approach, we provide a classification of generic miniband structures for electrons in graphene placed on substrates with the hexagonal Bravais symmetry. In particular, we identify conditions at which the first moire miniband is separated from the rest of the spectrum by either one or a group
of three isolated mini Dirac points and is not obscured by dispersion surfaces coming from other minibands. In such cases, the Hall coefficient exhibits two distinct alternations of its sign as a function of charge carrier density.

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©2013 American Physical Society