Electric field in atomically thin carbon films

K. S. Novoselov, A. K. Geim, S. V. Morozov, D. Jiang, Y. Zhang, S. V. Dubonos, I. V. Grigorieva, A. A. Firsov

    Research output: Contribution to journalArticlepeer-review


    We describe monocrystalline graphitic films, which are a few atoms thick but are nonetheless stable under ambient conditions, metallic, and of remarkably high quality. The films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands, and they exhibit a strong ambipolar electric field effect such that electrons and holes in concentrations up to 1013 per square centimeter and with room-temperature mobilities of ∼ 10,000 square centimeters per volt-second can be induced by applying gate voltage.
    Original languageEnglish
    Pages (from-to)666-669
    Number of pages3
    Issue number5696
    Publication statusPublished - 22 Oct 2004


    • Conduction band; Electric field effects; Electric resistance; Electron mobility; Gate potential; Hall effect; Hole mobility; Shubnikov-de Haas effect; Valence band (elec. field effects on transport in at. carbon films)


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