Coulomb blockade in graphene nanoribbons

Details Coulomb blockade in graphene nanoribbons Coulomb blockade in graphene nanoribbons

2007-05-25

arxiv.org/abs/0705.3805v2

Phys. Rev. Lett. 99, 166803 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.99.166803

We propose that recent transport experiments revealing the existence of an energy gap in graphene nanoribbons may be understood in terms of Coulomb blockade. Electron interactions play a decisive role at the quantum dots which form due to the presence of necks arising from the roughness of the graphene edge. With the average transmission as the only fitting parameter, our theory shows good agreement with the experimental data.

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