The discovery of a new superconductor, LaFeAsO1− xFx with a superconducting critical
temperatureT, c, of 26 K in 2008, has quickly renewed interest in the exploration of iron …

Superconductors with exotic physical properties are critical to current and future technology.
In this review, we highlight several important superconducting families and focus on their …

Layered superconductors have provided some interesting fields in condensed matter
physics owing to the low dimensionality of their electronic states. For example, the high-T c …

Exotic superconductivity has often been discovered in materials with a layered (two-
dimensional) crystal structure. The low dimensionality can affect the electronic structure and …

We have established a plot of the anion height dependence of superconducting transition
temperature T c for the typical Fe-based superconductors. The plot showed a symmetric …

Here we summarize the physical properties of the newly discovered Fe-chalcogenide
superconductors. The Fe-chalcogenide superconductors are of great interest because they …

accepted May 7, 2009; published July 10, 2009) We have investigated the effect of atomic
substitutions in the FeSe system, which exhibits the simplest crystal structure among the iron …

We have successfully synthesized the new BiS2-based superconductor NdOBiS2 by F
doping. This compound is composed of superconducting BiS2 layers and blocking NdO …

The interface between two different materials can show unexpected quantum phenomena.
In this study, we used molecular beam epitaxy to synthesize heterostructures formed by …

Over the last decade, the possibility of realizing topological superconductivity (TSC) has
generated much excitement. TSC can be created in electronic systems where the …