Speaker
Description
The technological application of nanoscale functional elements made of individual molecules is a promising approach towards the miniaturization of electronic devices. In particular, there is a potential for exploiting quantum interference effects in controlling the charge transport in these molecular-scale devices.
The electronic conduction G=I/V is determined by the electronic current I passing through a molecular junction from the left metallic lead to the right one and V is the voltage difference between the contacts. Current I is calculated based on the Landauer formula
I=(2e/h) ∫_(-∞)^∞ dE T(E) [f_left (E)-f_right (E)]
Here, T(E) is the transmission coefficient, f_left(E) (f_right(E)) is the Fermi distribution function of the left (right) metallic electrods.
Our work is aimed at developing a theoretical approach that explains the effects of the conformation and intrinsic chemical nature of a molecule, the features of its electronic structure, and the geometry of its connection with metal electrodes on the efficiency of electronic conduction along this molecular wire.
