Two-dimensional electron and hole gases at the surface of graphite

S. V. Morozov, K. S. Novoselov, F. Schedin, D. Jiang, A. A. Firsov, A. K. Geim

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We report two-dimensional (2D) electron and hole gases induced at the surface of graphite by the electric field effect. The 2D gases reside within a few near-surface atomic layers and exhibit mobilities up to 15000 and 60000cm2/Vs at room and liquid-helium temperatures, respectively. The mobilities imply ballistic transport on μm scale. Pronounced Shubnikov-de Haas oscillations reveal the existence of two types of charge carries in both electron and hole gases. © 2005 The American Physical Society.
    Original languageEnglish
    Article number201401
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume72
    Issue number20
    DOIs
    Publication statusPublished - 15 Nov 2005

    Keywords

    • films

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