Superconductivity develops in metals upon the formation of a coherent macroscopic
quantum state of electron pairs. Iron pnictides and chalcogenides are materials that have …

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 …

Superconductivity in two-dimensional compounds is widely studied, not only because of its
application in constructing nano-superconducting devices, but also for general scientific …

Epitaxial engineering of solid state heterointerfaces is a leading avenue to realizing
enhanced or novel electronic states of matter. As a recent example, bulk FeSe is an …

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 …

At the interface between monolayer FeSe films and SrTiO3 substrates the superconducting
transition temperature (T c) is unexpectedly high, triggering a surge of excitement. The …

Interface charge transfer and electron–phonon coupling have been suggested to play a
crucial role in the recently discovered high-temperature superconductivity of single unit-cell …

Enormous enhancement of superconducting pairing temperature (T g) to 65 K in
FeSe/SrTiO3 has made it a spotlight. Despite the effort of interfacial engineering, FeSe …

Superconductivity arises from two distinct quantum phenomena: electron pairing and long-
range phase coherence. In conventional superconductors, the two quantum phenomena …