High-resolution angle-resolved photoemission spectroscopy has been performe
d on isostructural RSbs (R = La, Ce, U) to study the electronic band struct
ure near the Fermi level as well as the Fermi-surface topology. We found th
at USb has a metallic band structure in contrast with semimetallic LaSb and
CeSb. (C) 1999 Elsevier Science B.V. All rights reserved.