Anomalous potential barrier of double-wall carbon nanotube

R. Saito, R. Matsuo, T. Kimura, G. Dresselhaus, M. S. Dresselhaus

Research output: Contribution to journalArticlepeer-review

407 Citations (Scopus)


The stable structure of a double-wall carbon nanotube (DWNT) is calculated for various chirality pairs, (n,m)-(n,m), of inner and outer constituent layers. The stability of a double-wall nanotube is found not to depend on chirality, but rather on the diameter difference between inner and outer layers. However, the potential barrier for the relative displacement of the inner and outer nanotube layers is found to depend significantly on the chirality difference of the pair. Mechanical motions like a bolt-nut pair or discrete rotations can be expected for special pairs of chiralities in double-wall nanotubes, and these special motions will be important for nano-technology.

Original languageEnglish
Pages (from-to)187-193
Number of pages7
JournalChemical Physics Letters
Issue number3-4
Publication statusPublished - 2001 Nov 9
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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