Decoherence and dephasing in molecular electronic devices

Show simple item record Walczak, Kamil Lyshevski, Sergey 2009-04-08T14:56:30Z 2009-04-08T14:56:30Z 2006-06
dc.identifier.citation IEEE-NANO 2006. Sixth IEEE Conference on Nanotechnology, 17-20 June 2006, Volume 1, pp. 78- 81
dc.identifier.isbn 1-4244-0077-5
dc.description Copyright 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. en_US
dc.description.abstract This paper presents theoretical studies of the effect of decoherence on nonlinear electron transport that affect the current-voltage (I-V) characteristics as well as the power dissipated in the molecular electronic devices. The calculations are performed using the non-equilibrium Green functions (NEGF) formalism applying the Hückel concept to linear atomic chains weakly connected to terminals (electrodes). Those interconnected molecules are examined by making use of the wide-band approximation. The charging effects are modeled using the self-consistent potential, while the dephasing effect is examined by the use of complex potential. It is shown that for higher voltages the molecular junction may be unstable due to incoherent conduction process, while the magnitude of the current flowing through the junction decreases exponentially with increasing the values of dephasing potential. en_US
dc.language.iso en_US en_US
dc.publisher IEEE en_US
dc.relation RIT Scholars content from RIT Digital Media Library has moved from to RIT Scholar Works, please update your feeds & links!
dc.relation.ispartofseries Vol. 1 en_US
dc.subject Green function en_US
dc.subject Molecular electronics en_US
dc.subject Molecule en_US
dc.title Decoherence and dephasing in molecular electronic devices en_US
dc.type Proceedings en_US

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