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Showing 1–6 of 6 results
Advanced filters: Author: Oleg Makarovsky Clear advanced filters

  • Moiré field-effect transistors based on graphene/hexagonal boron nitride heterostructures are promising for their high room-temperature carrier mobilities and magnetotransport properties. Here, high-temperature molecular beam epitaxy growth of graphene/hBN gives rise to a moiré-fringed hexagonal superlattice with Hofstadter butterfly electronic band structure and quantum magneto-oscillations above room temperature.

    • Oleg Makarovsky
    • Richard J. A. Hill
    • Peter H. Beton
    ResearchOpen Access
    Communications Materials
    Volume: 5, P: 1-6

  • Electron-electron interactions are known to play an important role in the in-plane transport properties of graphene-based devices. Here, the authors investigate the role of electron-electron interactions on electrons tunnelling between the layers of a graphene/hBN/graphene tunnel transistor and demonstrate the emergence of a Coulomb gap at low temperatures and in quantising magnetic fields.

    • Evgenii E. Vdovin
    • Mark T. Greenaway
    • Laurence Eaves
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-8

  • Graphene exhibits both extremely high electrical conductivity and electron mobility but an incomplete understanding of the underlying mechanisms so far limits potential applications in electrical devices. Here, the authors theoretically and experimentally investigate the role of charged impurities and optical phonons on the conductivity properties of graphene and establish a universal connection between the mobility and conductivity.

    • Jonathan H. Gosling
    • Oleg Makarovsky
    • T. Mark Fromhold
    ResearchOpen Access
    Communications Physics
    Volume: 4, P: 1-8

  • Limits on the functionality and miniaturization of Si-based devices present barriers towards integration into quantum electronics. The authors present an alternative, resonant tunnelling transistor based on a two-dimensional layered heterostructure, exhibiting multiple regions of negative differential conductance.

    • Zakhar R. Kudrynskyi
    • James Kerfoot
    • Amalia Patanè
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-7