Charge transfer through molecular junctions with superconducting electrodes

Prof. Dr. Joachim Ankerhold, Universität Ulm

Experiments with molecular junctions consisting of superconducting electrodes (SMS) have been one of the latest achievements in the field of molecular electronics. In a way they generalize the fascinating developments that have been achieved for superconducting atomic point contact. The data obtained so far offer a very encouraging prospect as they provide a wealth of information beyond standard room-temperature transport measurements. The goal of this project is to obtain a deeper understanding of the role of Andreev reflections in presence of intramoelcular degrees of freedom so as to reveal to what extent signatures of corresponding processes and molecular transmission channels can be identified in transport measurements. The experimentally relevant regimes of current driven and voltage driven contacts will be addressed one the one hand by proper scattering/Greens function type of formulations and on the other hand with effective descriptions which for atomic point contacts have been very successfully applied.

For more information visit our website at:

http://tfp1.physik.uni-freiburg.de/~joachim/welcome.html

(Since we are still moving from Freiburg to Ulm, this site is still preliminary, but will be updated and redesigned soon)