Phys. Rev. Lett. 103, 256801 (2009) [4 pages]Propagative Landau States and Fermi Level Pinning in Carbon NanotubesReceived 8 July 2009; published 15 December 2009 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 URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.256801
DOI:
10.1103/PhysRevLett.103.256801
PACS:
73.63.Fg, 71.70.Di
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