Electric Field Effect in Atomically Thin Carbon Films

  title={Electric Field Effect in Atomically Thin Carbon Films},
  author={Kostya S. Novoselov and SUPARNA DUTTASINHA and Sergei V. Morozov and Da Jiang and Y. Zhang and Sergey. V. Dubonos and Irina V. Grigorieva and Anatoly Firsov},
  pages={666 - 669}
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… 

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