Berlin 2005 – scientific programme
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TT: Tiefe Temperaturen
TT 23: Posters Superconductivity, Solids at Low Temperature
TT 23.27: Poster
Monday, March 7, 2005, 14:00–18:00, Poster TU D
Renormalization group studies of pairing mechanism and order parameter symmetry in Sr2RuO4 — •Andrey Katanin1,2, Arno Kampf3, and Ivan Leonov3 — 1Max-Planck-Institut fuer Festkoerperforschung, 70569 Stuttgart, Germany — 2Institute of Metal Physics, 620219 Ekaterinburg, Russia — 3Institut fuer Physik, Theoretische Physik III, Elektronische Korrelationen und Magnetismus, Universitaet Augsburg, 86135 Augsburg, Germany
We study superconducting pairing in Sr2RuO4 by application of the functional renormalization group method combined with the Bethe-Salpeter analysis to realistic 3-band Hubbard model, which describes this compound. The competition of singlet and triplet pairings with different symmetries is investigated within this model. The results are compared to earliar proposals on the mechanism of triplet pairing in Sr2RuO4.