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Determination of the Intershell Conductance in Multiwalled Carbon Nanotubes

By Bertrand Bourlon, C. Miko, L. Forro, Christian Glattli and Adrian Bachtold

Abstract

5 pages, 4 figuresWe 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 $\\mu$m the current mainly flows through the two outer shells, described by a resistive transmission line with an intershell conductance per length of ~(10 k\\Omega)^{-1}/$\\mu$m. The intershell transport is tunnel-type and the transmission is consistent with the estimate based on the overlap between $\\pi$-orbitals of neighboring shells

Topics: [PHYS.COND.CM-MSQHE] Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]
Publisher: American Physical Society
Year: 2004
OAI identifier: oai:HAL:hal-00017815v1
Provided by: Hal-Diderot
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