Fingerprints of mesoscopic leads in the conductance of a molecular wire

Abstract

The influence of contacts on linear transport through a molecular wire attached to mesoscopic tubule leads is studied. It is shown that low dimensional leads, such as carbon nanotubes, in contrast to bulky electrodes, strongly affect transport properties. By focusing on the specificity of the lead-wire contact, we show, in a fully analytical treatment, that the geometry of this hybrid system supports a mechanism of channel selection and a sum rule, which is a distinctive hallmark of the mesoscopic nature of the electrodes.

arXiv comment19 pages, 5 figures

References in corpus (5)

• Formation and manipulation of a metallic wire of single gold atoms
• Electron transmission through molecules and molecular interfaces
• An `all-carbon' molecular device
• Electron transport in nanotube--molecular wire hybrids
• Fullerene based devices for molecular electronics

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• First-principles molecular transport calculation for the benzenedithiolate molecule
• From a local Green function to molecular charge transport
• Quantum interference effects on the noise power in the CNT/aGNR/CNT junction
• Transport through an AC driven impurity: Fano interference and bound states in the continuum