High temperature Luttinger liquid conductivity in carbon nanotube bundles

Danilchenko, B. A.; Shpinar, L. I.; Tripachko, N. A.; Voitsihovska, E. A.; Zelensky, S. E.; Sundqvist, B.
August 2010
Applied Physics Letters;8/16/2010, Vol. 97 Issue 7, p072106
Academic Journal
The conductance and the current-voltage characteristics of metallic single wall carbon nanotube bundles have been measured between 4.2 and 330 K using 10–30 ns electric pulses to avoid overheating. The current-voltage characteristics at different temperatures collapse to a single curve when plotted in the specific coordinates following from the Tomonaga–Luttinger (T–L) liquid concept. Direct evidence is obtained for the existence of a T–L liquid phase up to 190 K and the system shows a transition between the T–L liquid state and a Mott insulating phase below 25 K.


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