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Intertube coupling in ropes of single-wall carbon nanotubes

H. Stahl·J. Appenzeller·R. Martel·Ph. Avouris·B. Lengeler
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Abstract

We investigate the coupling between individual tubes in a rope of single-wall carbon nanotubes using four probe resistance measurements. By introducing defects through the controlled sputtering of the rope we generate a strong non-monotonic temperature dependence of the four terminal resistance. This behavior reflects the interplay between localization in the intentionally damaged tubes and coupling to undamaged tubes in the same rope. Using a simple model we obtain the coherence length and the coupling resistance. The coupling mechanism is argued to involve direct tunneling between tubes.

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H. Stahl, J. Appenzeller, R. Martel, Ph. Avouris, B. Lengeler. 2000-03-27. Intertube coupling in ropes of single-wall carbon nanotubes. https://doi.org/10.1103/physrevlett.85.5186

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