Transport theory of carbon nanotube Y junctions

Details Transport theory of carbon nanotube Y junctions Transport theory of carbon nanotube Y junctions

2003-05-28

arxiv.org/abs/cond-mat/0305644v1

New Journal of Physics 5 (2003) 117.1-117.14

Physics

Condensed Matter

Strongly Correlated Electrons

submitted to New Journal of Physics, Focus Issue on Carbon Nanotubes, 15 pages, 3 figures

Scientific paper

10.1088/1367-2630/5/1/117

We describe a generalization of Landauer-B\"uttiker theory for networks of interacting metallic carbon nanotubes. We start with symmetric starlike junctions and then extend our approach to asymmetric systems. While the symmetric case is solved in closed form, the asymmetric situation is treated by a mix of perturbative and non-perturbative methods. For N>2 repulsively interacting nanotubes, the only stable fixed point of the symmetric system corresponds to an isolated node. Detailed results for both symmetric and asymmetric systems are shown for N=3, corresponding to carbon nanotube Y junctions.

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