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American Physical Society, Physical Review Letters, 9(84), p. 1974-1977, 2000

DOI: 10.1103/physrevlett.84.1974

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Fractional Quantum Conductance in Carbon Nanotubes

Journal article published in 1999 by Stefano Sanvito, Young-Kyun Kwon ORCID, David Tománek, Colin J. Lambert
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Using a scattering technique based on a parametrized linear combination of atomic orbitals Hamiltonian, we calculate the ballistic quantum conductance of multi-wall carbon nanotubes. We find that inter-wall interactions not only block some of the quantum conductance channels, but also redistribute the current non-uniformly over the individual tubes across the structure. Our results provide a natural explanation for the unexpected integer and non-integer conductance values reported for multi-wall nanotubes in Ref.[S. Frank, P. Poncharal, Z.L. Wang, and W. A. de Heer, Science 280, 1744 (1998)] Comment: 16 pages, 5 figures, submitted to PRL