Abstract Within the Bardeen–Cooper–Schrieffer (BCS) theory, superconductivity is entirely
governed by the pairing energy scale, which gives rise to the superconducting energy gap …

Thin films of Fe-based superconductors (FBS) have been utilized in a plethora of different
experiments for a fundamental understanding of the superconductivity in these materials, as …

In the pursuit of higher critical temperature of superconductivity, quasiflat electronic bands
and Van Hove singularities in two dimensions (2D) have emerged as a potential approach …

We investigated the superconducting transport properties of the one-unit-cell FeSe ultrathin
films epitaxially grown on undoped SrTiO 3 (001)(STO) with a well-defined surface structure …

The influence of the disorder-induced Anderson localization and electron-electron
interaction on the superconductivity in two-dimensional systems is explored. We determine …

FeSe is a unique superconductor that can be manipulated to enhance its superconductivity
using different routes, while its monolayer form grown on different substrates reaches a …

Recent experiments on 2D superconductors allow the characterization of the critical
temperature and of the phase diagram across the BCS-BEC crossover as a function of …

Discovery of layered superconductors such as cuprates and iron-based compounds has
unveiled new science and compounds. In these superconductors, quasi-two-dimensional …

We develop a theory for the vortex-unbinding transition in homogeneously disordered
superconducting films. This theory incorporates the effects of quantum, mesoscopic, and …

We report the structural and superconducting properties of FeSe0. 3Te0. 7 (FST) thin films
with different thicknesses grown on ferroelectric Pb (Mg1/3Nb2/3) 0.7 Ti0. 3O3 substrates. It …