Kramers' degenerate magnetism and superconductivity

Autor:	Amin, Adil, Wu, Hao, Shishidou, Tatsuya, Agterberg, Daniel F.
Rok vydání:	2023
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. B 109, 024502 (2024)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.109.024502
Popis:	Motivated by the recent discovery of odd-parity multipolar antiferromagnetic order in CeRh$_2$As$_2$, we examine the coexistence of such translation invariant Kramers' degenerate magnetic states and superconductivity. We show that the presence of such magnetic states generically suppresses superconductivity, whether it be spin-singlet or spin-triplet, unless the magnetic state drives a symmetry-required pair density wave (PDW) superconducting order. We apply our results to CeRh$_2$As$_2$, where no pair density wave order appears; and to the loop current order in the cuprates, where such pair density wave superconductivity must appear together with Bogoliubov Fermi surfaces. In the former case, we explain why superconductivity is not suppressed. Comment: 11 pages, 4 Figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2306.11218 Zobrazit plný text záznamu View this record from Arxiv