Coulomb Interactions and Mesoscopic Effects in Carbon Nanotubes

Details Coulomb Interactions and Mesoscopic Effects in Carbon Nanotubes Coulomb Interactions and Mesoscopic Effects in Carbon Nanotubes

1997-08-07

arxiv.org/abs/cond-mat/9708054v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.79.5086

We argue that long-range Coulomb forces convert an isolated (N,N) armchair carbon nanotube into a strongly-renormalized *Luttinger liquid*. At high temperatures, we find anomalous temperature dependences for the interaction and impurity contributions to the resistivity, and similar power-law dependences for the local tunneling density of states. At low temperatures, the nanotube exhibits spin-charge separation, visible as an extra energy scale in the discrete tunneling density of states (for which we give an analytic form), signaling a departure from the orthodox theory of Coulomb blockade.

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