Resonant Tunneling through S- and U-shaped Graphene Nanoribbons

Details Resonant Tunneling through S- and U-shaped Graphene Nanoribbons Resonant Tunneling through S- and U-shaped Graphene Nanoribbons

2009-11-02

arxiv.org/abs/0911.0247v2

NanoTechnology, Vol. 20, No. 41, pp. 415203 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 7 figures

Scientific paper

We theoretically investigate resonant tunneling through S- and U-shaped nanostructured graphene nanoribbons. A rich structure of resonant tunneling peaks are found eminating from different quasi-bound states in the middle region. The tunneling current can be turned on and off by varying the Fermi energy. Tunability of resonant tunneling is realized by changing the width of the left and/or right leads and without the use of any external gates.

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