Bandstructure Effects in Multiwall Carbon Nanotubes

Details Bandstructure Effects in Multiwall Carbon Nanotubes Bandstructure Effects in Multiwall Carbon Nanotubes

2004-10-29

arxiv.org/abs/cond-mat/0410764v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures

Scientific paper

We report conductance measurements on multiwall carbon nanotubes in a perpendicular magnetic field. A gate electrode with large capacitance is used to considerably vary the nanotube Fermi level. This enables us to search for signatures of the unique electronic band structure of the nanotubes in the regime of diffusive quantum transport. We find an unusual quenching of the magnetoconductance and the zero bias anomaly in the differential conductance at certain gate voltages, which can be linked to the onset of quasi-one-dimensional subbands.

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