Single-Molecule Device Prototypes for Protein-Based Nanoelectronics: Negative Differential Resistance and Current Rectification in Oligopeptides

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dc.creatorCardamone, David M.
dc.creatorKirczenow, George
dc.date2007-08-08
dc.date2008-01-06
dc.date.accessioned2026-07-07T09:32:23Z
dc.date.available2026-07-07T09:32:23Z
dc.descriptionWe investigate electrical conduction through individual oligopeptide molecules thiol-bonded between gold nanocontacts using ab initio and semi-empirical techniques. Our theory explains for the first time these molecules' experimentally observed current-voltage characteristics, including both the magnitude and rectification of the current, and uses no adjustable parameters. We identify the mechanism of the observed current rectification, and predict that it will result in negative differential resistance at moderate biases. Our findings open the way to the realization of protein-based nanoelectronic devices.
dc.description8 pages, 6 figures, 1 table. v2: new discussion of conductance as a function of molecular stretching, including new Fig. 3; expanded discussion of solution of the electrostatics problem; minor correction to Fig. 4 (was old Fig. 3); and minor clarifications throughout
dc.identifierhttps://arxiv.org/abs/0708.1041
dc.identifierhttp://arxiv.org/abs/0708.1041
dc.identifierPhysical Review B, Volume 77, 165403 (2008)
dc.identifierdoi:10.1103/PhysRevB.77.165403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/158764
dc.subjectMesoscale and Nanoscale Physics
dc.titleSingle-Molecule Device Prototypes for Protein-Based Nanoelectronics: Negative Differential Resistance and Current Rectification in Oligopeptides
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