Covalency-driven collapse of strong spin-orbit coupling in face-sharing iridium octahedra

Mai Ye, Heung-Sik Kim, Jae-Wook Kim +5

We report $\text{ab-initio}$ density functional theory calculation and Raman scattering results to explore the electronic structure of Ba${}_5$CuIr${}_3$O${}_{12}$ single crystals. Thi…