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Quasi-ballistic electron transport in double-wall carbon nanotubes

Hisashi Kajiura, Houjin Huang, Alexey Bezryadin

cond-mat.mtrl-sciarXiv:cond-mat/0410310

Abstract

Room-temperature quasi-ballistic electron transport in double-wall carbon nanotubes (DWNT) is demonstrated. Conductance dependence on the length was measured by submerging DWNTs into liquid mercury. The conductance plots show plateaus, indicating weak dependence of the electrode-tube-electrode electrical resistance on the length of the connecting nanotube. We infer a mean free path between 0.6 and 10 micron meters for around 80% of the DWNTs, which is in good agreement with calculations based on the electron scattering by acoustic phonons and by disorder.

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