Electronic properties of telescoping carbon nanotubes under external fields

T. S. Li, C. H. Lee, S. C. Chang, M. F. Lin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this work, we use the tight-binding model to study the low-energy electronic properties of telescoping double-walled carbon nanotubes subject to the influences of a transverse electric field and a parallel magnetic field. The state energy and energy spacings are found to oscillate significantly with the overlapping length. External fields would modify the state energies, alter the energy gaps, and destroy the state degeneracy. Complete energy gap modulations can be accomplished either by varying the overlapping length, or by applying an electric field or a magnetic field. The variations of state energies with the external fields will be directly reflected in the density of states. The numbers, heights, and frequencies of the density of states peaks are strongly dependent on the external fields.

Original languageEnglish
Pages (from-to)451-455
Number of pages5
JournalSolid State Communications
Volume145
Issue number9-10
DOIs
Publication statusPublished - 2008 Mar 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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