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14. Effects of open dangling end on the transport properties of single-wall carbon nanotubes

Author

Shi Qin-Wei, Chen Qin, Wang Xiao-Ping, and Li Tong-Cang

Subjects
Quantitative Biology::Biomolecules, Materials science, Period (periodic table), Condensed matter physics, Oscillation, General Physics and Astronomy, Conductance, Fermi energy, Nanotechnology, Carbon nanotube, law.invention, Condensed Matter::Materials Science, Zigzag, law
Abstract

The effects of the dangling end on the electronic transport properties of the single-wall carbon nanotubes (CNTs) have been investigated, based on the tight-binding model and Landau formula. It is found that the conductance oscillates per iodically near the Fermi energy in the CNT with a finite-length open dangling en d. Both slow and rapid oscillations occur in armchair CNTs, but only the rapid o scillation appears in zigzag ones. The period of the rapid oscillation decreases with increasing the length of the dangling end. Moreover, the mean conductance of the CNTs with finite-length open dangling end is about twice as that with inf inite-length open dangling end. Some relevant application is also discussed.

Published
2005

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