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Density of states reflects diameter in nanotubes

Author

Listed:
  • C. T. White

    (Code 6179, Naval Research Laboratory)

  • J. W. Mintmire

    (Code 6179, Naval Research Laboratory)

Abstract

Dresselhaus1 asked recently why scanning tunnelling microscopy and spectroscopy experiments2,3 find a similar number of peaks, in the density of states near the Fermi level, for a range of semiconducting single-wall carbon nanotubes with roughly the same diameters. After all, semiconducting achiral zigzag single-wall nanotubes can have translational unit cells more than an order of magnitude smaller than those of chiral semiconducting single-wall nanotubes with a similar diameter, so they might be expected to have fewer but sharper peaks in their density of states1. We show that all semiconducting single-wall nanotubes with similar diameters should have a similar density of states near the Fermi level, independent of translational unit cell size or chiral angle.

Suggested Citation

  • C. T. White & J. W. Mintmire, 1998. "Density of states reflects diameter in nanotubes," Nature, Nature, vol. 394(6688), pages 29-30, July.
    • Handle: RePEc:nat:nature:v:394:y:1998:i:6688:d:10.1038_27801
    DOI: 10.1038/27801
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