Abstract
We have investigated the electronic structure of double perovskites,Ba2FeReO6 (metallic)and Ca2FeReO6 (insulating) using optical and x-ray absorption spectroscopy. By comparing the experimentalresults with the density functional theory calculations, we found that the electronic structure ofBa2FeReO6 could bedetermined from the interaction of the electron correlation and spin–orbit coupling. On the other hand,for Ca2FeReO6, the lattice distortion and electron correlation are important indetermining the electronic structure. Additionally, the insulating gap inCa2FeReO6 is realized by the spin–orbit coupling. Our work shows that the subtle interplay of thespin–orbit interaction, electron correlation, and lattice distortion should be taken intoaccount to understand the electronic structure of the 5d transition metal oxides.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.