Electronic bisection of a single-wall carbon nanotube by controlled chemisorption

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Conversion of two diametrically opposed atomic rows on a carbon nanotube to sp3 hybridization produces two identical weakly coupled one-dimensional electronic systems within a single robust covalently bonded package: a biribbon. Arm-chair tubes, when so divided, acquire a pair of narrow spin-polarized bands at the Fermi energy; interaction across the sp3 dividers produces a tunable band splitting in the THz range. For semiconducting tubes, the eigenvalues of the low-energy electronic states are surprisingly unaffected by the bifurcation; however, the tubes' response functions to external electric fields are dramatically altered. These modified tubes could be produced by uniaxial compression transverse to the tube axis followed by site-selective chemisorption.

Original languageEnglish (US)
Article number026802
JournalPhysical Review Letters
Volume99
Issue number2
DOIs
StatePublished - Jul 13 2007

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chemisorption
carbon nanotubes
tubes
electronics
dividers
seats
eigenvalues
electric fields
energy
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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abstract = "Conversion of two diametrically opposed atomic rows on a carbon nanotube to sp3 hybridization produces two identical weakly coupled one-dimensional electronic systems within a single robust covalently bonded package: a biribbon. Arm-chair tubes, when so divided, acquire a pair of narrow spin-polarized bands at the Fermi energy; interaction across the sp3 dividers produces a tunable band splitting in the THz range. For semiconducting tubes, the eigenvalues of the low-energy electronic states are surprisingly unaffected by the bifurcation; however, the tubes' response functions to external electric fields are dramatically altered. These modified tubes could be produced by uniaxial compression transverse to the tube axis followed by site-selective chemisorption.",
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Electronic bisection of a single-wall carbon nanotube by controlled chemisorption. / Stojkovic, Dragan; Lammert, Paul Edward; Crespi, Vincent Henry.

In: Physical Review Letters, Vol. 99, No. 2, 026802, 13.07.2007.

Research output: Contribution to journalArticle

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