The molecular signature of highly conductive metal-molecule-metal junctions

Details The molecular signature of highly conductive metal-molecule-metal junctions The molecular signature of highly conductive metal-molecule-metal junctions

2008-10-10

arxiv.org/abs/0810.1873v2

Phys. Rev. B 80, 085427 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, 7 figures, 1 table. Related paper: J. Ferrer and V. M. Garc\'ia-Su\'arez, Phys. Rev. B 80, 085426 (2009)

Scientific paper

The simplicity of single-molecule junctions based on direct bonding of a small molecule between two metallic electrodes make them an ideal system for the study of fundamental questions related to molecular electronics. Here we study the conductance properties of six different molecules suspended between Pt electrodes. All the molecular junctions show a typical conductance of about 1G0 which is ascribed to the dominant role of the Pt contacts. However, despite the metallic-like conductivity, the individual molecular signature is well-expressed by the effect of molecular vibrations in the inelastic contribution to the conductance.

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