A term first coined by Mott back in 1968 a “pseudogap” is the depletion of the electronic
density of states at the Fermi level, and pseudogaps have been observed in many systems …

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 …

Resistive and magnetic properties have been measured in BiS 2-based samples CeO 1− x F
x BiS 2 with a systematic substitution of O with F (0< x< 0.6). In contrast to the band-structure …

We discuss the electronic structure, lattice dynamics, and electron-phonon interaction of the
newly discovered superconductor LaO 0.5 F 0.5 BiS 2 using density-functional-based …

Superconductivity (SC) and charge-density wave (CDW) are two contrasting yet relevant
collective electronic states, which have received sustained interest for decades. Here, we …

Abstract BiCh2-based compounds (Ch: S, Se) are a new series of layered superconductors
and the mechanisms for the emergence of superconductivity in these materials have not yet …

Rashba spin splitting is a two-dimensional (2D) relativistic effect closely related to
spintronics. However, so far there is no pristine 2D material to exhibit enough Rashba …

Abstract Novel BiS 2-based superconductors LaO 1− x F x BiS 2 prepared by a high-
pressure synthesis technique were systematically studied. It was found that the high …

We synthesized new REO 0.5 F 0.5 BiS 2 (RE: rare earth) superconductors with high-
entropy-alloy-type (HEA-type) REO blocking layers. The lattice constant a systematically …

In 2012, a new layered superconductor where BiS 2 layer is the superconducting layer was
discovered. So far, seven types of BiS 2-based superconductors and two related …