Beyond the Linearity of Current-Voltage Characteristics in Multiwalled Carbon Nanotubes

Details Beyond the Linearity of Current-Voltage Characteristics in Multiwalled Carbon Nanotubes Beyond the Linearity of Current-Voltage Characteristics in Multiwalled Carbon Nanotubes

2006-10-18

arxiv.org/abs/cond-mat/0610519v1

Semicond. Sci. Technol. 21 (2006) S33-S37

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 5 figures

Scientific paper

10.1088/0268-1242/21/11/S05

We present local and non-local electron transport measurements on individual multi-wall nanotubes for bias voltage between 0 and about 4 V. Local current-voltage characteristics are quite linear. In contrast, non-local measurements are highly non-linear; the differential non-local conductance can even become negative in the high-bias regime. We discuss the relationship between these results and transport parameters such as the elastic length, the number of current carrying shells, and the number of conducting modes.

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