Multiband $d-p$ model and self-doping in the electronic structure of Ba${}_2$IrO${}_4$

Krzysztof Rościszewski, Andrzej M. Oleś

We introduce and investigate the multiband $d-p$ model describing a IrO${}_4$ layer (such as realized in Ba${}_2$IrO${}_4$) where all $34$ orbitals per unit cell are partly occupied, i.e…