Molecular states in carbon nanotube double quantum dots

Details Molecular states in carbon nanotube double quantum dots Molecular states in carbon nanotube double quantum dots

2006-03-14

arxiv.org/abs/cond-mat/0603367v1

Phys. Rev. B 74, 075427 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevB.74.075427

We report electrical transport measurements through a semiconducting single-walled carbon nanotube (SWNT) with three additional top-gates. At low temperatures the system acts as a double quantum dot with large inter-dot tunnel coupling allowing for the observation of tunnel-coupled molecular states extending over the whole double-dot system. We precisely extract the tunnel coupling and identify the molecular states by the sequential-tunneling line shape of the resonances in differential conductance.

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