Cyclotron resonance of electrons and holes in graphene monolayers

Kai Chieh Chuang, Russell S. Deacon, Robin J. Nicholas, Kostya S. Novoselov, Andre K. Geim

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We report studies of cyclotron resonance in monolayer graphene. Cyclotron resonances are detected by observing changes in the photoconductive response of the sample. An electron velocity at the Dirac point of 1.093×10 6 m s-1 is obtained, which is the fastest velocity recorded for all known carbon materials. In addition, a significant asymmetry exists between band structure for electrons and holes, which gives rise to a 5% difference between the velocities at energies of 125meV away from the Dirac point. © 2007 The Royal Society.
    Original languageEnglish
    Pages (from-to)237-243
    Number of pages6
    JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
    Volume366
    Issue number1863
    DOIs
    Publication statusPublished - 28 Jan 2008

    Keywords

    • Cyclotron resonance
    • Fermi velocity
    • Graphene

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