Electronic structure of polychiral carbon nanotubes

Ph Lambin, V. Meunier, A. Rubio

Research output: Contribution to journalArticlepeer-review

77 Scopus citations


Most of the works devoted so far to the electronic band structure of multiwall nanotubes have been restricted to the case in which the individual layers have the same chirality. By comparison, much less is known on the electronic properties of multiwall nanotubes that mix different chiralities. These are interesting systems, however, since they can be composed of both metallic and semiconducting layers. For the present work, tight-binding calculations were undertaken for polychiral two-layer nanotubes such as (9,6)@(15,10), (6,6)@(18,2), and others. The recursion technique was used to investigate how the densities of states of the individual layers are affected by the intertube coupling. Constant-current scanning-tunneling-microscopy (STM) images were also calculated for these systems. The result obtained is that the image of a two-wall nanotube is pretty much the same as that of the isolated external layer. It is only in the case of monochiral, commensurate structures such as (5,5)@(10,10) that interlayer effects can be seen in the STM topography.

Original languageEnglish (US)
Pages (from-to)5129-5135
Number of pages7
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number8
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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