Backscattering in carbon nanotubes : role of quantum interference effects

Details Backscattering in carbon nanotubes : role of quantum interference effects Backscattering in carbon nanotubes : role of quantum interference effects

2001-04-06

arxiv.org/abs/cond-mat/0104111v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

8 pages, 3 figures

Scientific paper

10.1063/1.1421643

For similar disorder, the backscattering contribution to the conductivity, irrelevant for metallic single-walled carbon nanotubes, is proved to become more significant for doped semiconducting systems, as found in experiments. In the case of multi-walled nanotubes, the intershell coupling is further shown to enhance the contribution of backscattering for "metallic" double-walled, whereas it remains insignificant for "metallic/semiconducting" double-walled systems. This supports that MWNTs are long ballistic conductors close to the charge neutrality point.

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