期刊
PHYSICAL REVIEW B
卷 105, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.105.L020505
关键词
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资金
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-SC0017632, DE-SC0021971]
- Marsden Fund Council from Government funding
- U.S. Department of Energy (DOE) [DE-SC0021971] Funding Source: U.S. Department of Energy (DOE)
Recently, evidence has emerged for a field-induced even- to odd-parity superconducting phase transition in CeRh2As2. 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, resulting in the required near-degeneracy of the even- and odd-parity channels. The relevance of this theory to FeSe, which shares the same structure, is also discussed.
Recently, evidence has emerged for a field-induced even- to odd-parity superconducting phase transition in CeRh2As2 [S. Khim et al., Science 373, 1012 (2021)]. Here 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.
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