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Title: Nonsymmorphic symmetry and field-driven odd-parity pairing in Ce Rh 2 As 2

Journal Article · · Physical Review. B

Recently, evidence has emerged for a field-induced even- to odd-parity superconducting phase transition in CeRh2As2. In this paper we argue that the P4/nmm nonsymmorphic 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 even- and odd-parity channels. We further comment on the relevance of our theory to FeSe, which crystallizes in the same structure.

Research Organization:
West Virginia Univ., Morgantown, WV (United States); Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); Marsden Fund Council
Grant/Contract Number:
SC0017632; SC0021971
OSTI ID:
1979772
Journal Information:
Physical Review. B, Vol. 105, Issue 2; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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