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

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

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

Chen Qin, Li Tong-Cang, Shi Qin-Wei, Wang Xiao-Ping
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Publishing process
  • Received Date:  29 March 2005
  • Accepted Date:  27 May 2005
  • Published Online:  05 April 2005

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

  • 1. (1)中国科学技术大学合肥微尺度物质科学国家实验室,合肥 230026; (2)中国科学技术大学物理系,合肥 230026; (3)中国科学技术大学物理系,合肥 230026;中国科学技术大学合肥微尺度物质科学国家实验室,合肥 230026

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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