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Controlling The Electrical Property Of Highly Conductive Pyrazine Single-Molecule Junction
Published 2017 · Materials Science
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In Chap. 6, N2 was successfully placed between Pt electrodes. The lone pair of N2 formed a single-molecule junction with a high, well-defined conductance value. In this chapter, an application of the pyrazine single-molecule junction is investigated based on the findings in Chap. 6. Pyrazine is expected to have two conductance states. One is the configuration where a π orbital is parallel to the bonding direction. The other is the configuration where a p orbital is vertical to the bonding direction. Here, bi-stable states were fabricated, and their configurations were investigated in terms of their conductance and differential conductance, near edge X-ray fine structure, and theoretical calculations. The defined configurations were switched by an external force. The electrical properties of the single-molecule junction were controlled by changing the interface structure.
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