Electronic Band Structure of Carbon Nanotubes with Kekule Structure

Electronic band structure of carbon nanotubes with the Kekule structure is studied by the tight-binding approximation. We give a complete geometrical approach to structural properties of carbon nanotubes with bond alternation, including chiral and achiral tubes. When the Kekule is introduced, all ca...

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Bibliographic Details
Published inChinese physics letters Vol. 30; no. 9; pp. 96102 - 1-096102-4
Main Authors Ngoc Hieu, Nguyen, Cong Nhan, Le
Format Journal Article
LanguageEnglish
Published 01.09.2013
Subjects
Alternations
Approximation
Band structure of solids
Bonding
Carbon nanotubes
Electronics
Mathematical analysis
Tubes (electronic)
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Summary:Electronic band structure of carbon nanotubes with the Kekule structure is studied by the tight-binding approximation. We give a complete geometrical approach to structural properties of carbon nanotubes with bond alternation, including chiral and achiral tubes. When the Kekule is introduced, all carbon nanotubes become semiconducting with a small band gap at the Fermi level. The band gap of the carbon nanotubes depends only on the difference between C-C bond lengths or the resonance integrals.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/30/9/096102