Iron-based superconductors: teenage, complex, challenging

Abstract

The advent of iron-based superconductors in 2008 came as a complete surprise to the condensed matter community. Now 15 years later, they are beginning to impart some of their new-found wisdom on a slew of emerging superconductors that boast similar traits.

Article invited by Physics Today and intended for general readers. 18 pages, 4+2 figures. Version submitted, with the number of references limited by editorial mandate. The published version has been edited

References in corpus (8)

• Quantum Criticality
• Enhancement of superconductivity near a nematic quantum critical point
• Origin of the tetragonal-to-orthorhombic (nematic) phase transition in FeSe: a combined thermodynamic and NMR study
• Theoretical evidence for strong correlations and incoherent metallic state in FeSe
• Iron pnictides as a new setting for quantum criticality
• Formation of Hubbard-like bands as a fingerprint of strong electron-electron interactions in FeSe
• Correlation-Driven Electronic Reconstruction in FeTe${}_{1-x}$Se${}_x$
• Competing instabilities, orbital ordering and splitting of band degeneracies from a parquet renormalization group analysis of a 4-pocket model for iron-based superconductors: application to FeSe