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Determination of the Intershell Conductance in Multiwalled Carbon Nanotubes

B. Bourlon·C. Miko·L. Forro·D. C. Glattli·A. Bachtold
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Abstract

We report on the intershell electron transport in multiwalled carbon nanotubes (MWNT). To do this, local and nonlocal four-point measurements are used to study the current path through the different shells of a MWNT. For short electrode separations $\lesssim$ 1 $μ$m the current mainly flows through the two outer shells, described by a resistive transmission line with an intershell conductance per length of ~(10 kΩ)^{-1}/$μ$m. The intershell transport is tunnel-type and the transmission is consistent with the estimate based on the overlap between $π$-orbitals of neighboring shells.

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B. Bourlon, C. Miko, L. Forro, D. C. Glattli, A. Bachtold. 2004-07-26. Determination of the Intershell Conductance in Multiwalled Carbon Nanotubes. https://doi.org/10.1103/physrevlett.93.176806

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