Normal-incidence reflectivity measurements between 0.5 and 6 eV on thorium metal reveal the existence of bandlike (or itinerant) f states several electron volts above the Fermi energy. The predictions of relativistic band-structure determinations are in qualitative agreement with experiment. This study provides the first direct observation and characterization of 5f electrons in metals as being itinerant in nature and unlike the 4f states in the rare earths.
ASJC Scopus subject areas
- Physics and Astronomy(all)