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.
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