Valence-band UPS, 6p core-level XPS, and LEED of a uranium (001) single crystal -: art. no. 165109

Valence-band ultraviolet photoemission spectroscopy (UPS) at 173 K and 6p core-level x-ray photoemission spectroscopy (XPS) at room temperature were performed on a high quality uranium single crystal. Significant agreement is found with first-principles electronic band-structure calculations, using a generalized gradient approximation (GGA). In addition, using low energy electron diffraction (LEED) for the (001) surface, we find a well-ordered orthorhombic crystallographic structure representative of the bulk material.