Nonlinear Properties of an Inter-Electrode Current Through a Short Molecular Wire

The formation of current through a short molecular wire is determined not only by jumps of separate transferring electrons between the sites of electron localization within the wire, but the effect of Coulomb repulsion of the electrons must be accounted for as well. This repulsion blocks the appeara...

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Bibliographic Details
Published in:Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Molecular crystals and liquid crystals, 2001-05, Vol.361 (1), p.209-216
Main Authors: Petrov, Elmar G., Zelinskii, Yaroslav R., Hänggi, Peter
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Conductivity phenomena in semiconductors and insulators
Coulomb inhibition
Electronic transport in condensed matter
Exact sciences and technology
High-field and nonlinear effects
inter-electrode current
molecular wire
Physics
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Summary:The formation of current through a short molecular wire is determined not only by jumps of separate transferring electrons between the sites of electron localization within the wire, but the effect of Coulomb repulsion of the electrons must be accounted for as well. This repulsion blocks the appearance of an additional transferring electron in the wire if the wire already contains the transferring electron at an arbitrary wire unit. The Coulomb inhibition effect results in a strong nonlinearity of both, the inelastic inter-electrode current-voltage characteristics and current-temperature characteristics. Among the characteristic novel features are the saturation of the current at high voltage bias and its suppression at both, low and high temperatures.
ISSN:1058-725X
DOI:10.1080/10587250108025740