Non-symmorphic symmetry and field-driven odd-parity pairing in CeRh$_2$As$_2$

Autor:	Cavanagh, D. C., Shishidou, T., Weinert, M., Brydon, P. M. R., Agterberg, D. F.
Rok vydání:	2021
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. B 105, L020505 (2022)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.105.L020505
Popis:	Recently, evidence has emerged for a field-induced even- to odd-parity superconducting phase transition in CeRh$_2$As$_2$ [S. Khim et al., Science 373 1012 (2021)]. Here we argue that the P4/nmm non-symmorphic crystal structure of CeRh$_2$As$_2$ 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. Comment: 9 pages, 9 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2106.02698 Zobrazit plný text záznamu View this record from Arxiv