Dresden 2006 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
TT: Tiefe Temperaturen
TT 8: Correlated Electrons: Heavy Fermions
TT 8.1: Vortrag
Montag, 27. März 2006, 14:30–14:45, HSZ 301
Tunneling spectroscopy experiments on epitaxial UNi2Al3 thin films — •Andrey Zakharov, Martin Jourdan, and Hermann Adrian — Johannes Gutenberg-University, Institute of Physics, Staudinger Weg 7, 55128 Mainz, Germany
We are presenting the results of tunneling spectroscopy experiments performed on the heavy fermion superconductor UNi2Al3. Planar junctions consisting of an a*-axis oriented UNi2Al3 thin film as a base electrode, AlOx insulating layer and a metal counter electrode were prepared employing an in vacuo process. The MESA structures made by photolitography were investigated as well as simple cross-junctions. The observation of the well-known superconducting density of states of the counter electrode (Pb) allows the evaluation of the junction quality. The tunneling conductivity will be discussed in the framework of density of states and barrier effects.