Title: Bend-induced insulating gap in carbon nanotubes
Authors: Chibotaru, Liviu ×
Bovin, SA
Ceulemans, Arnout #
Issue Date: 1-Oct-2002
Publisher: Published by the American Physical Society through the American Institute of Physics
Series Title: Physical Review B, Condensed matter and materials physics vol:66 issue:16
Article number: 161401
Abstract: The effect of uniform bend on the electronic structure of single wall carbon nanotubes is investigated as function of diameter, chirality, and plane of bend. This deformation can only mix states with the same projection of k on the tube's axis and belonging either to one nanotube line or to nearest neighbor and next nearest neighbor lines. The bend-induced insulating gap opens in chiral and zigzag tubes, scales as the square of the bend curvature and is strongly dependent on the chirality of the tube. For large diameters of the tubes, the bend-induced gap scales as the square of the tube's diameter and is strongly determined by the changes of the bond lengths. The observation of these gaps should become possible with current experimental techniques.
ISSN: 1098-0121
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Occupational, Environmental and Insurance Medicine (-)
Quantum Chemistry and Physical Chemistry Section
× corresponding author
# (joint) last author

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