f-band dispersion in UIr3: An angle-resolved and resonant photoemission study

Abstract

Angle-resolved photoemission measurements using synchrotron radiation have been made on a U${\mathrm{Ir}}_3$(100) face. With the use of the Fano resonance at the $5d$ absorption edge, the $5f$ emission was extracted and found to agree well with a calculated $5f$ density of states. Dispersion was observed for the first time in a photoemission peak clearly associated with $5f$ emission. The dispersion is generally in good agreement with calculated energy bands.