Open AccessEffects of open dangling end on the transport properties of single-wall carbon nanotubes
Author(s) -
Qin Chen,
Tongcang Li,
Shi Qin-Wei,
Xiaoping Wang
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.3962
Subject(s) - zigzag , carbon nanotube , conductance , materials science , dangling bond , oscillation (cell signaling) , condensed matter physics , nanotechnology , physics , silicon , optoelectronics , chemistry , biochemistry , geometry , mathematics
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.