Achintya Lakshan

Quasi-Isostructural Solid-Solution Formation of Cu4TiSe4 with Cu3TMQ4 (TM: V, Nb, Ta; Q: S, Se): Tuning “Stuffing” Concentration for Ultralow Thermal Conductivity

Abstract In this study, we adopted a quasi-isostructural solid-solution strategy involving selenotitanate Cu4TiSe4 and sulvanite-type Cu3TMQ4 (TM: V, Nb, Ta; Q: S, Se). At room temperature, both systems crystallize in the cubic P4̅3m space group, where Cu4TiSe4 additionally conta...