Quasi-ballistic electron transport in double-wall carbon nanotubes

Details Quasi-ballistic electron transport in double-wall carbon nanotubes Quasi-ballistic electron transport in double-wall carbon nanotubes

2004-10-12

arxiv.org/abs/cond-mat/0410310v1

Chemical Physics Letters vol 398, 476 (2004).

Physics

Condensed Matter

Materials Science

Scientific paper

10.1016/j.cplett.2004.09.115

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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