An ab initio study of single-walled nanotubes bombarded with 50-150 eV Cs+ ions

Mohammad Khazaei, Amir A. Farajian, Hiroshi Mizuseki, Yoshiyuki Kawazoe

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We use ab initio molecular dynamics to investigate the mechanical response and geometric deformation for the capped and stem structures of (5,5) nanotubes, during doping by Cs ions. The favorable doping sites/energies are generally different from those of thicker tubes. After collision with kinetic energy 50 eV, the Cs ion is detached from the short, thin nanotubes; however, the dopants get adsorbed on long ones. At higher energies, partial encapsulation accompanied by local sp3 bondings and bridge-like structures is observed. Our estimates of distortion wave velocity support the observation that armchair nanotubes are less stiff compared to zigzag ones.

Original languageEnglish
Pages (from-to)34-39
Number of pages6
JournalChemical Physics Letters
Volume415
Issue number1-3
DOIs
Publication statusPublished - 2005 Oct 24

ASJC Scopus subject areas

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

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