Author/Authors :
Barberio، نويسنده , , M. and Camarca، نويسنده , , M. and Barone، نويسنده , , P. and Bonanno، نويسنده , , A. and Oliva، نويسنده , , A. and Xu، نويسنده , , F.، نويسنده ,
Abstract :
The electric resistivity of a clean multi-walled carbon nanotube (MWNT) mat sample was studied at temperatures T between 300 and 1900 K. We found that the resistivity ρ decreases monotonously with increasing temperature without showing any sign of turn up. Our results can be well fitted with a power law of T−α within the framework of one dimensional Luttinger liquid theory with α = 0.13 or with a simple thermally activated inter shell hopping model.