Order parameter in superconductors with nondegenerate bands

@article{Sergienko2004OrderPI,
  title={Order parameter in superconductors with nondegenerate bands},
  author={Ivan A. Sergienko and S H Curnoe},
  journal={Physical Review B},
  year={2004},
  volume={70},
  pages={214510}
}
In noncentrosymmetric metals, the spin degeneracy of the electronic bands is lifted by spin-orbit coupling. We consider general symmetry properties of the pairing function Delta(k) in noncentrosymmetric superconductors with spin-orbit coupling (NSC), including CePt3Si, UIr and Cd2Re2O7. We find that Delta(k) = chi(k) t(k), where chi(k) is an even function which transforms according to the irreducible representations of the crystallographic point group and t(k) is a model dependent phase factor… 
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