The Remarkable Underlying Ground States of Cuprate Superconductors

By C. Proust, L. Taillefer. Annual Review of Condensed Matter Physics, 2018

355 citations recorded by the source corpus.

Cuprates exhibit exceptionally strong superconductivity. To understand why, it is essential to elucidate the nature of the electronic interactions that cause pairing. Superconductivity occurs on the backdrop of several underlying electronic phases, including a doped Mott insulator at low doping, a strange metal at high doping, and an enigmatic pseudogap phase in between—inside which a phase of charge-density wave order appears. In this article, we shed light on the nature of these remarkable phases by focusing on the limit as [Formula: see text], where experimental signatures and theoretical statements become sharper. We therefore survey the ground-state properties of cuprates once superconductivity has been removed by the application of a magnetic field and distill their key universal features.

Subfields: Condensed Matter Physics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/1a3a85eda43218778774621f6922f90bb233cc7c

Citations in the corpus

• Quantum simulation of the Hubbard model with ultracold fermions in optical lattices (2018, neutral): “The two-dimensional Fermi-Hubbard model appears to be a promising candidate, although the mechanism leading to a superconducting phase is still the object of active research [164,165].”
• High-temperature superconductivity with zero resistance and strange-metal behaviour in La3Ni2O7−δ (2023, neutral): “Note that although the curves are equally shifted vertically for clarity, the data at 13.7 GPa and above all reach zero resistance below the superconducting transition, as demonstrated in the inset.”