Low-energy electronic properties of a pair of carbon nanotubes

Jiun Yi Lien, Min Fa Lin

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

A pair of carbon nanotubes, with the intertube interactions, are studied for the low-energy electronic properties within the tight-binding model. Energy dispersion, state degeneracy, subband spacing, energy gaps, and density of states are dominated by the nanotube radius and the relative azimuthal angle between two nanotubes. The intertube interactions could destroy double degeneracy. Moreover, they could effectively reduce energy gaps, or change narrow-gap systems into gapless systems. The above-mentioned electronic properties are strongly modulated by the transverse electric field. Such a field could induce new band-edge states.

Original languageEnglish
Pages (from-to)512-514
Number of pages3
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume4
Issue number2
DOIs
Publication statusPublished - 2007 Dec 1
EventInternational Conference on Superlattices, Nano-structures and Nano-devices, ICSNN-2006 - Istanbul, Turkey
Duration: 2006 Jul 302006 Aug 4

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nanotubes
carbon nanotubes
electronics
flux density
spacing
interactions
radii
electric fields
energy

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

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Low-energy electronic properties of a pair of carbon nanotubes. / Lien, Jiun Yi; Lin, Min Fa.

In: Physica Status Solidi (C) Current Topics in Solid State Physics, Vol. 4, No. 2, 01.12.2007, p. 512-514.

Research output: Contribution to journalConference article

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AB - A pair of carbon nanotubes, with the intertube interactions, are studied for the low-energy electronic properties within the tight-binding model. Energy dispersion, state degeneracy, subband spacing, energy gaps, and density of states are dominated by the nanotube radius and the relative azimuthal angle between two nanotubes. The intertube interactions could destroy double degeneracy. Moreover, they could effectively reduce energy gaps, or change narrow-gap systems into gapless systems. The above-mentioned electronic properties are strongly modulated by the transverse electric field. Such a field could induce new band-edge states.

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