Angle-resolved photoemission spectroscopy (ARPES)—an experimental technique based
on the photoelectric effect—is arguably the most powerful method for probing the electronic …

Since the discovery of high T c iron-based superconductors in early 2008, more than 15,000
papers have been published as a result of intensive research. This paper describes the …

'Conventional'superconductivity, as used in this review, refers to electron–phonon-coupled
superconducting electron pairs described by BCS theory. Unconventional superconductivity …

The recent discovery of high-temperature superconductivity in iron-based compounds has
attracted much attention. How to further increase the superconducting transition temperature …

Whether a quantum critical point (QCP) lies beneath the superconducting dome has been a
long-standing issue that remains unresolved in many classes of unconventional …

Angle resolved photoemission spectroscopy (ARPES) reveals the features of the electronic
structure of quasi-two-dimensional crystals which are crucial for spin and charge ordering …

Almost a decade has passed since the serendipitous discovery of the iron-based high
temperature superconductors (FeSCs) in 2008. The fact that, as in the copper oxide high …

FeSe layer-based superconductors exhibit exotic and distinctive properties. The undoped
FeSe shows nematicity and superconductivity, while the heavily electron-doped K x Fe2− y …

In iron-pnictide superconductivity, the interband interaction between the hole and electron
Fermi surfaces (FSs) is believed to play an important role. However, KFe2As2 has three …

In a superconductor electrons form pairs and electric transport becomes dissipation-less at
low temperatures. Recently discovered iron-based superconductors have the highest …