Excitation of molecular vibrational modes with inelastic scanning tunneling microscopy processes: examination through action spectra of cis-2-butene on Pd(110).
Excitation of molecular vibrational modes with inelastic scanning tunneling microscopy processes: examination through action spectra of cis-2-butene on Pd(110).
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DOI：
10.1103/physrevlett.95.246102
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发表时间：
2005-12
影响因子：
8.6
通讯作者：
Y. Sainoo;Yousoo Kim;Toshiro Okawa;T. Komeda;H. Shigekawa;M. Kawai
中科院分区：
文献类型：
--
作者：
Y. Sainoo;Yousoo Kim;Toshiro Okawa;T. Komeda;H. Shigekawa;M. Kawai
用来自扫描隧道显微镜(STM)的非弹性隧穿电子诱导Pd(110)表面四个等效取向之间的振动介电运动，得到的作用谱比扫描隧道显微镜的非弹性电子隧穿光谱能清楚地探测到更多的振动模式.我们证明了作用光谱作为一种新的单分子振动光谱方法的有效性。我们还从共振隧穿的角度讨论了它的选择规则。
Inelastically tunneled electrons from a scanning tunneling microscope (STM) were used to induce vibrationally mediated motion of a single cis-2-butene molecule among four equivalent orientations on Pd(110) at 4.8 K. The action spectrum obtained from the motion clearly detects more vibrational modes than inelastic electron tunneling spectroscopy with a STM. We demonstrate the usefulness of the action spectroscopy as a novel single molecule vibrational spectroscopic method. We also discuss its selection rules in terms of resonance tunneling.