Nonlinear electron current through a short molecular wire.
Nonlinear electron current through a short molecular wire.
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通过短分子线的非线性电子电流。
DOI：
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发表时间：
2000
影响因子：
8.6
通讯作者：
P. Hänggi
中科院分区：
文献类型：
--
作者：
E. Petrov;P. Hänggi
用考虑转移电子间库仑斥力的非线性动力学方法，分析了短分子导线介导的非弹性极间电流的电压和温度行为。当通过高频振动模式耦合到热浴时，我们预测了一般的非线性电流-电压特性(小电压下的欧姆行为，上升到饱和，然后在高电压下突然下降)和在不太高的温度下钟形电流随温度的响应。
The voltage and the temperature behavior of inelastic interelectrode current mediated by a short molecular wire is analyzed within a nonlinear kinetic approach that accounts for strong Coulomb repulsion between transferring electrons. When the coupling to the heat bath occurs via high-frequency vibration modes we predict a generally nonlinear current-voltage characteristics (an Ohmic behavior at small voltage, rising towards saturation and being followed by an abrupt decrease at large voltage) and a bell-shaped current response vs temperature at not too large temperatures.