Highly Conductive Molecular Junctions Based on Direct Binding of Benzene to Platinum Electrodes

M. Kiguchi, O. Tal, S. Wohlthat, F. Pauly, M. Krieger, D. Djukic, J. C. Cuevas, J. M. van Ruitenbeek
2008 Physical Review Letters  
Highly conductive molecular junctions were formed by direct binding of benzene molecules between two Pt electrodes. Measurements of conductance, isotopic shift in inelastic spectroscopy and shot noise compared with calculations provide indications for a stable molecular junction where the benzene molecule is preserved intact and bonded to the Pt leads via carbon atoms. The junction has a conductance comparable to that for metallic atomic junctions (around 0.1-1 Go), where the conductance and
more » ... conductance and the number of transmission channels are controlled by the molecule's orientation at different inter-electrode distances.
doi:10.1103/physrevlett.101.046801 pmid:18764352 fatcat:cxbb2zclsvhqpbwq6x5zkum4hm