The Quantum Interference Effect Transistor: Principles and Perspectives

Details The Quantum Interference Effect Transistor: Principles and Perspectives The Quantum Interference Effect Transistor: Principles and Perspectives

2007-05-09

arxiv.org/abs/0705.1193v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages, 7 figures

Scientific paper

We give a detailed discussion of the Quantum Interference Effect Transistor (QuIET), a proposed device which exploits interference between electron paths through aromatic molecules to modulate current flow. In the off state, perfect destructive interference stemming from the molecular symmetry blocks current, while in the on state, current is allowed to flow by locally introducing either decoherence or elastic scattering. Details of a model calculation demonstrating the efficacy of the QuIET are presented, and various fabrication scenarios are proposed, including the possibility of using conducting polymers to connect the QuIET with multiple leads.

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