Controlling quantum transport through a single molecule

David M. Cardamone, Charles A. Stafford, Sumit Mazumdar

Research output: Contribution to journalArticle

209 Scopus citations

Abstract

We investigate multiterminal quantum transport through single monocyclic aromatic annulene molecules, and their derivatives, using the nonequilibrium Green function approach within the self-consistent Hartree-Fock approximation. We propose a new device concept, the quantum interference effect transistor, that exploits perfect destructive interference stemming from molecular symmetry and controls 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 nanoscale device proposals.

Original languageEnglish (US)
Pages (from-to)2422-2426
Number of pages5
JournalNano Letters
Volume6
Issue number11
DOIs
StatePublished - Nov 2006

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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