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 …

I review recent works on the symmetry and the structure of the superconducting gap in Fe-
based superconductors (FeSCs) and on the underlying pairing mechanism in these …

The behaviour of strongly correlated materials, and in particular unconventional
superconductors, has been studied extensively for decades, but is still not well understood …

The recent discovery of possible high-temperature superconductivity in single-layer FeSe
films, has generated significant experimental and theoretical interest,. In both the cuprate …

The recently discovered Fe-pnictide and chalcogenide superconductors display low-
temperature properties suggesting superconducting gap structures which appear to vary …

Iron selenide superconductors exhibit a number of unique characteristics that are helpful for
understanding the mechanism of superconductivity in high-T c iron-based superconductors …

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

High-transition temperature (high-T c) superconductivity in the iron pnictides or
chalcogenides emerges from the suppression of the static antiferromagnetic order in their …

This review shows the highlights of a 4-year-long research project supported by the
Japanese Government to explore new superconducting materials and relevant functional …

The iron-based superconductors that contain FeAs layers as the fundamental building block
in the crystal structures have been rationalized in the past using ideas based on the Fermi …