LETTER TO THE EDITOR Angle-resolved photoemission study and first-principles calculation of the electronic structure

In this work we present valence band studies of LaSb2 using angle-resolved photoelectron spectroscopy with synchrotron radiation and compare these data with band structure calculations. Valence band spectra reveal that Sb 5p states are dominant near the Fermi level and are hybridized with the La 5d states just below. The calculations show a fair agreement with the experimentally determined valence band spectra, allowing an identification of the observed features. We measured some dispersion for k⊥, especially for Sb 5p states; no significant dispersion was found for k‖. 1