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首页> 外文期刊>Physical review >Effect of metal-molecule contact on electron-vibration interaction in single hydrogen molecule junction
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Effect of metal-molecule contact on electron-vibration interaction in single hydrogen molecule junction

机译：金属分子接触对单个氢分子结中电子振动相互作用的影响

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摘要

The effect of the strength of metal-molecule contact on electron-vibration interaction was investigated for the single hydrogen molecule bridging between Cu electrodes and Pt electrodes. For the single hydrogen/Pt junctions, conductance suppression caused by electron-vibration interaction was observed only for the junction with a conductance value above 0,5 G_0(G_0 = 2e~2/h), which corresponded with the prediction of the one-level model in the symmetric coupling of the molecule to metal electrodes. In contrast, conductance suppression was also observed for the single hydrogen/Cu junctions with a conductance value below 0.5 G_0, which could be explained by a decrease in the interaction between the hydrogen molecule and the Cu electrodes.
机译：对于铜电极和铂电极之间的单个氢分子桥接，研究了金属分子接触强度对电子振动相互作用的影响。对于单个氢/ Pt结，仅在电导值大于0.5 G_0（G_0 = 2e〜2 / h）的结中观察到由电子振动相互作用引起的电导抑制，这与一个氢/ Pt结的预测相对应。分子与金属电极的对称偶联中的能级模型。相反，还观察到电导值低于0.5 G_0的单个氢/铜结的电导抑制，这可以用氢分子与Cu电极之间相互作用的减少来解释。

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  • 来源
    《Physical review》 |2011年第24期|p.245412.1-245412.5|共5页
  • 作者

    Ryuji Matsushita; Satoshi Kaneko; Tomoka Nakazumi; Manabu Kiguchi;

  • 作者单位

    Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology 2-12-1 W4-10 Ookayama,Meguro-ku, Tokyo 152-8551, Japan;

    Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology 2-12-1 W4-10 Ookayama,Meguro-ku, Tokyo 152-8551, Japan;

    Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology 2-12-1 W4-10 Ookayama,Meguro-ku, Tokyo 152-8551, Japan;

    Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology 2-12-1 W4-10 Ookayama,Meguro-ku, Tokyo 152-8551, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    nanoscale contacts; contact resistance, contact potential; metal-to-metal contacts;

    机译：纳米级触点;接触电阻;接触电位;金属对金属触点;

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