Spin-orbit excitons and electronic configuration of the $5d^4$ insulator Sr${}_3$Ir${}_2$O${}_7$F${}_2$

Zach Porter, Paul M. Sarte, Thorben Petersen +3

Here we report on the low-energy excitations within the paramagnetic spin-orbit insulator Sr${}_3$Ir${}_2$O${}_7$F${}_2$ studied via resonant inelastic X-ray scattering, \textit{ab initio}…