Figure 2. Vibrational Spectroscopy Using Scanning Tunneling Microscope (IMAGE)

Kanazawa University

Figure 2. Vibrational Spectroscopy Using Scanning Tunneling Microscope

Caption

A. Upon application of voltage between a metal probe of a scanning probe microscope*3) and a copper surface on which the molecule is adsorbed, an electric current is generated between the two electrodes. The relationship of the current (I) and voltage (Vt) is approximately linear. B. The second derivative of the relationship of the current and the voltage gives two pairs of peaks and troughs at the voltage corresponding to the vibration energy of the molecule. One pair represents the FT mode, the other, FR mode.

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Kanazawa University

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