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Free keywords:
Electronic structure, Metals, Oxides, Rhenium compounds, X ray photoelectron spectroscopy, X rays, Angle-resolved, Bulk sensitive, Density functionals, Hard X-ray photoelectron spectroscopy, Hybrid functionals, Metallic oxides, Soft X-ray, Spin orbit interactions, Spin orbit coupling
Abstract:
We have investigated the electronic structure of the metallic oxide ReO3 using bulk-sensitive angle-resolved soft-x-ray and angle-integrated hard-x-ray photoelectron spectroscopy. We observed clear dispersions of the Re 5d- and O 2p-derived bands as well as the momentum splitting of the Fermi surface due to the Re 5d spin-orbit interaction. We found that density-functional-based band structure methods can provide an accurate description of the observed electronic states. To achieve the accuracy it was necessary to utilize hybrid functionals for the calculations. © 2021 authors. Published by the American Physical Society.
