Nonsymmorphic symmetry and field-driven odd-parity pairing in CeRh2As2

@article{Cavanagh2022NonsymmorphicSA,
  title={Nonsymmorphic symmetry and field-driven odd-parity pairing in 
CeRh2As2},
  author={David Cavanagh and Tatsuya Shishidou and Michael Weinert and P. M. R. Brydon and Daniel Agterberg},
  journal={Physical Review B},
  year={2022}
}
Recently, evidence has emerged for a field-induced evento odd-parity superconducting phase transition in CeRh2As2 [S. Khim et al., Science 373 1012 (2021)]. Here we argue that the P4/nmm non-symmorphic crystal structure of CeRh2As2 plays a key role in enabling this transition by ensuring large spin-orbit interactions near the Brillouin zone boundaries, which naturally leads to the required near-degeneracy of the evenand odd-parity channels. We further comment on the relevance of our theory to… 

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