Journal
PHYSICAL REVIEW B
Volume 80, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.085427
Keywords
bonds (chemical); carbon compounds; electrical conductivity; hydrogen; molecular configurations; molecular electronics; organic compounds; platinum; vibrational modes; water
Funding
- NWO
- IUVSTA-Welch foundation
- Spanish MEC [MAT2007-65487, CSD2007-0010]
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The simplicity of single-molecule junctions based on direct bonding of a small molecule between two metallic electrodes makes them an ideal system for the study of fundamental questions related to molecular electronics. Here we study the conductance properties of six different types of molecules by suspending individual molecules between Pt electrodes. All the molecular junctions show a typical conductance of about 1G(0) which is ascribed to the dominant role of the Pt contacts. However, despite the metalliclike 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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