Beyond the Linearity of Current-Voltage Characteristics in Multiwalled Carbon Nanotubes
arXiv:cond-mat/0610519 · doi:10.1088/0268-1242/21/11/S05
Abstract
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.
5 pages, 5 figures