On the influence of electron-electron correlation on the current-voltage characteristics of a short molecular wire

被引：0
|
作者：
Petrov, E.G. [1 ]
Marchenko, V.V. [1 ]
Zelinskyy, Ya. R. [1 ]
机构：
[1] Bogolyubov Institute for Theoretical Physics, Natl. Acad. Sci. of Ukraine, 14-b Metrologichna str., UA, Kiev,03143, Ukraine
来源：
Molecular Crystals and Liquid Crystals | 2002年 / 385卷 / 01期
关键词：
Electric fields - Electric power transmission - Electron transitions - Nanowires - Wire;
D O I：
10.1080/713738794
中图分类号：
学科分类号：
摘要：
It is demonstrated that detailed information can be gained on the inelastic mechanism of correlated electron transfer through a molecular wire if one analyses the current behavior in dependence on the strength of the external electric field. The approach is complementary to the derivation of the current-voltage characteristics, and the given analysis of the current-length effect observed at a fixed electric field-strength allows to specify the influence of the blocking transmission factor on incoherent electron transfer. It is found that at small external electric field-strength the current through a regular molecular wire exhibits an Ohmic behaviour while at strong fields electron-electron correlations lead to an exponential decrease of the current. © 2002, Copyright Taylor & Francis Group, LLC.
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