Propagative Landau states and Fermi level pinning in carbon nanotubes

Sébastien Nanot, Rémi Avriller, Walter Escoffier, Jean Marc Broto, Stephan Roche, Bertrand Raquet

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    Abstract

    We present strong evidence of Landau states formation in multiwalled carbon nanotubes with metallic or semiconducting outer shells, under magnetic fields as high as 60 T. Magnetoconductance data are found to converge to a gate-independent value for semiconducting shells, whereas for metallic shells, the Landau states introduce a strong reintroduction of backscattering and Fermi level pinning close to the charge neutrality point. Electronic band structure and transport calculations provide a consistent interpretation of the experimental data. © 2009 The American Physical Society.
    Original languageEnglish
    Article number256801
    JournalPhysical Review Letters
    Volume103
    Issue number25
    DOIs
    Publication statusPublished - 15 Dec 2009

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