Berlin 2012 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 33: Superconductivity, Measuring Devices, Matter at Low Temperature: Poster Session
TT 33.56: Poster
Mittwoch, 28. März 2012, 15:00–19:00, Poster B
Proximity effects at the interface between chiral p-wave superconductors and ferromagnets — •Damien Terrade1, Mario Cuoco2, Paola Gentile2, and Dirk Manske1 — 1Max Planck Institute For Solid State Research, Stuttgart, Germany — 2CNR-SPIN, Fisciano (Salerno), Italy
We focus on an interface along the (001) direction. The system is made by a stack of two-dimensional layers, with a d→-vector perpendicular to the plane,
which should be the first experimental configuration of the predicted Josephson junctions
involving component like Sr2RuO4. The SC is described with an extended Hubbard model and the
ferromagnetism is based either on a Stoner-like model [1,2] or on a change
in the relative bandwidth of electrons for the two different spin polarizations[3]. We compute self-consistently the pairing potentials, the magnetization and the free energy as a function of the exchange field strength
as well as the angle between the exchange field and the d→-vector. We have generalized the work done in [3]
by including spin-flip process and magnetic impurities at the interface as well as a temperature dependence. We obtain in the FM layers no induced singlet components unlike interface along the (100) direction and strongly reduced oscillations for the triplet components.
K. Kuboki. J. Phys. Soc. Jap. 70, 9 (2001).
B. M.Andersen, et al. Phys. Rev. B 77, 054501 (2008).
M. Cuoco, et al. Phys. Rev. B 78, 054503 (2008).