From quantum matter to high-temperature superconductivity in copper oxides

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The physics of quantum materials (2017, background): “Much progress has been made since then in explaining unconventional superconductivity and other ordering phenomena in the copper oxides 53 , as well as related states in ruthenates, heavy-fermion intermetallics, organic conductors, and other correlated-electron materials 54 .”
Translationally Invariant Non-Fermi-Liquid Metals with Critical Fermi Surfaces: Solvable Models (2018, background): “Perhaps the most striking example of the latter behavior occurs in the “strange-metal” regime [9,10] of the cuprate superconductors and some quantum-critical heavy-fermion systems [8,11].”
Thermodynamic evidence for a nematic phase transition at the onset of the pseudogap in YBa2Cu3Oy (2017, background): “Whether a quantum critical point (QCP) is present inside the superconducting dome has been a hotly debated issue in cuprates [1, 25, 26].”
Angle-resolved photoemission studies of quantum materials (2020, neutral): “…number of previous reports and reviews (Alloul et al., 1989; Campuzano et al., 1999; Ding et al., 1996; Fedorov et al., 1999; Hashimoto et al., 2014; Keimer et al., 2015; Loeser et al., 1996; Lu et al., 2012; Marshall et al., 1996; Renner et al., 1998; Tanaka et al., 2006; Timusk and Statt, 1999).”
Signatures of superconductivity near 80 K in a nickelate under high pressure (2023, neutral): “Pressure (GPa) Te m p er at ur e (K ) Tc– ′ Tc– R(1) Tc– R(2) Tc– R(3) Tc– R(4) 150 200”