Coexisting ferromagnetic and antiferromagnetic interactions in Mott–Hubbard insulating-type FeCr 2 O 4 nanoparticles driven by localized d-electron states

Puntos clave

• This research aims to explore the magnetic interactions in FeCr2O4 nanoparticles and confirm their Mott–Hubbard insulating nature.
• Utilized resonant photoemission spectroscopy (RPES) to analyze the electronic states of FeCr2O4 nanoparticles.
• Confirmed the Mott–Hubbard insulating nature of FeCr2O4 nanoparticles.
• Identified the coexisting ferromagnetic and antiferromagnetic interactions driven by localized d-electron states.