Symmetries of Pairing Correlations in Superconductor–Ferromagnet Nanostructures

  title={Symmetries of Pairing Correlations in Superconductor–Ferromagnet Nanostructures},
  author={Matthias Eschrig and Tomas L{\"o}fwander and Thierry Champel and Juan Carlos Cuevas and Juha Kopu and Gerd Sch{\"o}n},
  journal={Journal of Low Temperature Physics},
Using selection rules imposed by the Pauli principle, we classify pairing correlations according to their symmetry properties with respect to spin, momentum, and energy. We observe that inhomogeneity always leads to mixing of even- and odd-energy pairing components. We investigate the superconducting pairing correlations present near interfaces between superconductors and ferromagnets, with focus on clean systems consisting of singlet superconductors and either weak or half-metallic… 

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