High-pressure insulator-to-metal transition in Sr${}_3$Ir${}_2$O${}_7$ studied by x-ray absorption spectroscopy

C. Donnerer, M. Moretti Sala, S. Pascarelli +7

High-pressure x-ray absorption spectroscopy was performed at the Ir $L_3$ and $L_2$ absorption edges of Sr${}_3$Ir${}_2$O${}_7$. The branching ratio of white line intensities continuousl…