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 …

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

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

I review theoretical ideas and implications of experiments for the gap structure and symmetry
of the Fe-based superconductors. Unlike any other class of unconventional …

Superconducting correlations may propagate between two superconductors separated by a
tiny insulating or metallic barrier, allowing a dissipationless electric current to flow,. In the …

In bulk materials, superconductivity is remarkably robust with respect to non-magnetic
disorder. In the two-dimensional limit, however, disorder and electron correlations both tend …

We prepare single-unit-cell FeSe films on insulating SrTiO 3 substrates by molecular beam
epitaxy and investigate the evolution of their superconducting properties with annealing by …

FeSe superconductors and their related systems have attracted much attention in the study
of iron-based superconductors owing to their simple crystal structure and peculiar electronic …

We review our recent experimental results on the electronic nematic phase in electron-and
hole-doped BaFe 2 As 2 and FeSe. The nematic susceptibility is extracted from shear …

Junctions and interfaces consisting of unconventional superconductors provide an excellent
experimental playground to study exotic phenomena related to the phase of the order …