Electronic structure and localized states at carbon nanotube tips

D. L. Carroll, P. Redlich, P. M. Ajayan, J. C. Charlier, X. Blase, A. De Vita, Roberto Car

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Abstract

Topology related changes in the local density of states near the ends of closed carbon nanotubes are investigated using spatially resolved scanning tunneling spectroscopy and tight binding calculations. Sharp resonant valence band states are observed in the experiment at the tube ends, dominating the valence band edge and filling the band gap. Calculations show that the strength and position of these states with respect to the Fermi level depend sensitively on the relative positions of pentagons and their degree of confinement at the tube ends.

Original languageEnglish (US)
Pages (from-to)2811-2814
Number of pages4
JournalPhysical review letters
Volume78
Issue number14
DOIs
StatePublished - Apr 7 1997

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Carroll, D. L., Redlich, P., Ajayan, P. M., Charlier, J. C., Blase, X., De Vita, A., & Car, R. (1997). Electronic structure and localized states at carbon nanotube tips. Physical review letters, 78(14), 2811-2814. https://doi.org/10.1103/PhysRevLett.78.2811