Cardamone David M, Stafford Charles A, Mazumdar Sumit
Department of Physics, University of Arizona, 1118 E. 4th Street, Tucson, Arizona 85721, USA.
Nano Lett. 2006 Nov;6(11):2422-6. doi: 10.1021/nl0608442.
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.
