Interplay between hole superconductivity and quantum critical antiferromagnetic fluctuations in electron-doped cuprates.

ABSTRACT: Antiferromagnetic spin fluctuations are the most promising candidate as the pairing glue of high critical temperature (T_c) superconductivity in cuprates. However, many-body states and intertwined orders have made it difficult to determine how electrons couple with fluctuating spins to form Cooper pairs. Recent experimental and theoretical studies have suggested spin fluctuation-driven quasiparticle band folding, but the relationship between the resultant Fermi pockets and superconductivity remains unclear. Here, using angle-resolved photoemission spectroscopy and numerical simulations, we show a proportional relationship between T_c and the quasiparticle weight of the incipient hole pocket near the nodal point in electron-doped Pr_1-xLaCe_xCuO₄

SUBMITTER: Song D 

PROVIDER: S-EPMC11926391 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature