The current-voltage characteristics of several different types of material with partially metallic conductivity show similar nonlinearities. We analyze the current-voltage characteristics and their temperature dependence for metallic single-wall carbon nanotubes (SWNTs) suspended between electrodes and show their consistency with calculations for fluctuation-assisted tunnelling and activated conduction. We also make a comparison with earlier data on the current-voltage characteristics of networks of SWNTs and a SWNT rope.
Bibliographical noteFunding Information:
This work was supported by the Multinational Cooperation Project on Quantum Transport in Synthetic Metals II with contract No. M6-0301-00-0005 by the Ministry of Science and Technology (MOST), Korea.
- Carbon nanotubes
- Current-voltage characteristics