The physics of quantum materials is dictated by many-body interactions and mathematical
concepts such as symmetry and topology that have transformed our understanding of matter …

Emergent electronic phenomena in iron-based superconductors have been at the forefront
of condensed matter physics for more than a decade. Much has been learned about the …

The superconductor iron selenide (FeSe) is of intense interest owing to its unusual
nonmagnetic nematic state and potential for high-temperature superconductivity. But its …

Topological materials and unconventional iron-based superconductors are both important
areas of study but, to date, relatively little overlap has been identified between these two …

The interactions that lead to the emergence of superconductivity in iron-based materials
remain a subject of debate. It has been suggested that electron-electron correlations …

The coexistence and competition between superconductivity and electronic orders, such as
spin or charge density waves, have been a central issue in high transition-temperature (T c) …

Iron-based superconductors are well known for their complex interplay between structure,
magnetism and superconductivity. FeSe offers a particularly fascinating example. This …

High-temperature superconductivity and a wide variety of exotic superconducting states
discovered in FeSe-based materials have been at the frontier of research on condensed …

FeSe is a fascinating superconducting material at the frontier of research in condensed
matter physics. Here, we provide an overview of the current understanding of the electronic …

Elucidating the nature of the magnetism of a high-temperature superconductor is crucial for
establishing its pairing mechanism. The parent compounds of the cuprate and iron-pnictide …