Strong correlation effects of the Re 5$d$ electrons on the metal-insulator transition in Ca${}_2$FeReO${}_6$

H. Iwasawa, T. Saitoh, Y. Yamashita +5

We have investigated the electronic structure of polycrystalline Ca${}_2$FeReO${}_6$ using photoemission spectroscopy and band-structure calculations within the local-density approxima…