Abstract
Electron transport properties of molecules suspended between gold electrodes are investigated using first-principles calculations. Our study reveals that the conductances are quite sensitive to the number of molecules between electrodes: the conductances of monomers are near while those of dimers are markedly smaller, since incident electrons easily pass the molecules and are predominantly scattered at the junctions. Moreover, we find both channel currents locally circulating the outermost carbon atoms.
- Received 8 November 2003
DOI:https://doi.org/10.1103/PhysRevB.69.121408
©2004 American Physical Society