Synthesis and Characterization of New Functional Materials Based on Hyper-Ordered Structures

The structural and superconducting properties of various materials characterized by ‘hyper-ordered structures’, including（1）metal doped FeSe,（2）topological quantum materials,（3）materials in which superconductivity coexists with charge density wave（CDW）, and（4）parity-lacking materials, are fully investigated across a wide range of pressures. Interesting and fascinating superconducting properties emerge through the application of pressure, where structural variations directly or indirectly influence these properties. We summarize our recent findings and discuss future perspectives to highlight the scientific significance of this study. Additionally, fundamental physics underlying the behavior of target materials is detailed.