Theory of elastic and inelastic tunnelling microscopy and spectroscopy: CO on Cu revisited
Theory of elastic and inelastic tunnelling microscopy and spectroscopy: CO on Cu revisited
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弹性和非弹性隧道显微镜和光谱学理论：重温铜上的 CO
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
M. Persson
中科院分区：
文献类型：
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作者：
M. Persson
基于Cu（111）上有序CO结构和CO二聚体的密度泛函计算，我们证明了在扫描隧道显微镜（STM）结中隧穿的Tersoff-Hamann方法及其在振动非弹性隧穿中的推广，可以有效地描述观察到的STM图像和振动光谱以及显微镜。特别是，这种方法提供了对振动非弹性隧穿的新的物理理解，这不仅对单分子振动光谱和显微镜的发展有用，而且对STM结中非弹性电子隧穿的单键形成和断裂也有用。
Based on density functional calculations of an ordered CO structure and a CO dimer on Cu(111), we show that the Tersoff-Hamann approach to tunnelling in a scanning tunnelling microscope (STM) junction and its generalization to vibrational inelastic tunnelling give a useful description of observed STM images and vibrational spectra and microscopy. In particular, this approach provides new physical understanding of vibrational inelastic tunnelling that should not only be useful for the development of single molecule vibrational spectroscopy and microscopy but also of single-bond making and breaking by inelastic electron tunnelling in an STM junction.