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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

, 11 March 2004
(at 18:00 in room B)
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Quantum transport through carbon-based nanojunctions

Miriam del Valle

Universidad Autonoma de Madrid

We present a quantum transport study of two- and three-terminal carbon nanotube (CNT) based junctions. We concentrate our analysis on functionalized and recapped zig-zag CNTs exhibiting peculiar surface electronic states localized at the zig-zag cut and at the cap defect atoms respectively. We calculate the linear conductance by means of the Green function technique, within a p-orbital description of the carbon network, and show the interplay between these peculiar localized states and the open transport channels through the device. In correspondence of the energies of the localized states, the conductance behavior shows a Fano-like resonance. Possible experimental conditions and setup in which such effect could be detected are also discussed.

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Within the DPG Frühjahrstagung 2004 (German Physical Society, Spring Meeting 2004)

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