Analytic expressions for the inelastic scattering and energy loss of electron and proton beams in carbon nanotubes

Research output: Contribution to journalArticle

  • Authors:
  • D. Emfietzoglou
  • I. Kyriakou
  • R. Garcia-Molina
  • I. Abril
  • K. Kostarelos

Abstract

We have determined "effective" Bethe coefficients and the mean excitation energy of stopping theory (I -value) for multiwalled carbon nanotubes (MWCNTs) and single-walled carbon nanotube (SWCNT) bundles based on a sum-rule constrained optical-data model energy loss function with improved asymptotic properties. Noticeable differences between MWCNTs, SWCNT bundles, and the three allotropes of carbon (diamond, graphite, glassy carbon) are found. By means of Bethe's asymptotic approximation, the inelastic scattering cross section, the electronic stopping power, and the average energy transfer to target electrons in a single inelastic collision, are calculated analytically for a broad range of electron and proton beam energies using realistic excitation parameters. © 2010 American Institute of Physics.

Bibliographical metadata

Original languageEnglish
Article number054312
JournalJournal of Applied Physics
Volume108
Issue number5
DOIs
Publication statusPublished - 1 Sep 2010