Role of Vanadium-Oxide Layer in Electronic State of Sr${}_2$VFeAsO${}_{3-\delta }$ with Oxygen Deficiency

Masamichi Nakajima, Hiroaki Yokota, Taihei Wakimura +6

Iron-based superconductor Sr${}_2$VFeAsO${}_3$ is composed of alternate stacking of a superconducting FeAs layer and an insulating vanadium-oxide layer with a perovskite-type structure…