Electronic structure of uranium-based ferromagnets studied using angle-resolved photoemission spectroscopy

Strongly correlated f-electron systems often exhibit intriguing properties such as unconventional superconductivity and heavy fermion behaviors. Particularly in uranium systems, the 5f electrons possess unique duality, which imposes challenges in the understanding of their role in the observed properties. Here, we present an angle-resolved photoemissions spectroscopy (ARPES) study of uranium-based ferromagnets, supported by density-functional theory calculations. The results reveal the Fermi surface topology and underlying electronic structure of these materials. Through comprehensive photon energy dependent measurements, nature of the uranium 5f states and their hybridization with valence states in these systems are revealed. This work provides new insights into the low-energy electronic structure of these uranium-based ferromagnetic materials, offering a basis for understanding their transport and magnetic properties.