Controlling quantum transport through a single molecule

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We investigate multi-terminal quantum transport through single monocyclic aromatic annulene molecules, and their derivatives, using the nonequilibrium Green function approach in the self-consistent Hartree-Fock approximation. A new device concept, the Quantum Interference Effect Transistor (QuIET) is proposed, exploiting perfect destructive interference stemming from molecular symmetry, and controlling current flow by introducing decoherence and/or elastic scattering that break the symmetry. This approach overcomes the fundamental problems of power dissipation and environmental sensitivity that beset many nanoscale device proposals.
4 pages, 5 figures

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Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/127723

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0508407
 http://arxiv.org/abs/cond-mat/0508407
 Nano Letters 6, 2422 (2006)
 doi:10.1021/nl0608442

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arXiv