Since graphene became available by a scotch tape technique, a vast class of two-
dimensional (2D) van der Waals (vdW) layered materials has been researched intensively …

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 …

Kamihara and coworkers' report of superconductivity at T c= 26 K in fluorine-doped
LaFeAsO inspired a worldwide effort to understand the nature of the superconductivity in this …

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 …

High-temperature superconductivity and a wide variety of exotic superconducting states
discovered in FeSe-based materials have been at the frontier of research on condensed …

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

Recent progress in two-dimensional superconductors with atomic-scale thickness is
reviewed mainly from the experimental point of view. The superconducting systems treated …

Nematicity and magnetism are two key features in Fe-based superconductors, and their
interplay is one of the most important unsolved problems. In FeSe, the magnetic order is …

Measurements of London penetration depth, a sensitive tool to study multiband
superconductivity, have provided several important insights into the behavior of Fe-based …

In 2012, we discovered superconductivity in Bi4O4S3 and LaO1− x F x BiS2, whose crystal
structures are composed of alternate stacks of a BiS2-type conduction layer and a blocking …