Given the collaborative effect between different anions, compounds containing two types of
anions can have improved physical performance compared with some aspects of those …

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 …

The Keggin structure, known as an archetypical polyoxometalate (POM) structural motif, has
widened up our fundamental understanding of the growth behavior of natural metal oxide …

We report the synthesis, crystal structure, and physical properties of a quinary iron arsenide
fluoride, KCa2Fe4As4F2. The new compound crystallizes in a body-centered tetragonal …

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 …

We present how the introduction of anion vacancies in oxyhydrides enables a route to
access new oxynitrides, by conducting ammonolysis of perovskite oxyhydride EuTiO3–x H x …

The electronic structure, magnetism, Fermi surface nesting, and bare susceptibility of the
superconductor KCa 2 Fe 4 As 4 F 2 are discussed in relation to the Fe-pnictide …

Lattice match and charge transfer between distinct block layers (BLs) play an important role
in the formation of an intergrowth structure. Herein we propose a simple BL model …

Resistivities of single-crystalline as well as poly-crystalline samples of CeOBiS 2 without
fluorine doping were measured at temperatures down to 0.13 K, and were compared with …

Abstract R (O, F) BiS2 (R: La, Ce, Pr, Nd) superconducting single crystals with different F
concentrations are grown using a CsCl/KCl flux. The obtained 1-2 mm-sized single crystals …