Elektronentransport durch metallische und organische Drähte
Schematic
representation of a single-molecule junction. The central part formed by
the molecule plus part of the metallic electrodes constitutes what we call
the central cluster. Finally, this cluster is coupled to two semi-infinite
leads made of the same metallic material.
Formation
of a chain of gold atoms as obtained from a molecular dynamics simulation.
The upper panels shows the forces during the breaking of the contact, while
the middle panels shows the minimum cross section, total conductance and
channel transmissions during the formation of the wire.
Scanning
electron micrograph with a SiO2 bridge, covered by a thin gold
layer. This setup allows improved access with light and enlarges the experimental
potential of the method.