Berlin 2012 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 48: Superconductivity: Heterostructures, Andreev Scattering, Proximity Effect, Vortices
TT 48.6: Talk
Friday, March 30, 2012, 10:45–11:00, H 2053
Proximity effect in noncentrosymmetric superconductors hybrid structures — •Gaetano Annunziata1, Jacob Linder2, and Dirk Manske1 — 1Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany — 2Department of Physics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
We analyze proximity effect in junctions of noncentrosymmetric superconductors (NCSs) and diffusive metals/ferromagnets within the quasiclassical theory of superconductivity. We show how by standard STM/STS measurements for LDOS in the proximate region [1] exploiting the directional dependence of pair-breaking effect of the exchange field on the triplet Cooper pairs [2,3], several superconducting scenarios for NCSs characterized by different kinds of edge states [4] can be discriminated, and that within a single scenario information on the relative magnitude of triplet and singlet gaps in NCSs can be obtained [5].
T. Kontos, M. Aprili, J. Lesueur, F. Genêt, B. Stephanidis, and R. Boursier, Phys. Rev. Lett. 89, 137007 (2002).
P. M. R. Brydon and D. Manske, Phys. Rev. Lett. 103, 147001 (2009).
G. Annunziata, M. Cuoco, C. Noce, A. Sudbø, and J. Linder, Phys. Rev. B 83, 060508(R) (2011).
Y. Tanaka, Y. Mizuno, T. Yokoyama, K. Yada, and M. Sato, Phys. Rev. Lett. 105, 097002 (2010).
G. Annunziata, J. Linder and D. Manske, to be published.