Circular dichroism in resonant angle-resolved photoemission spectra of LaNi2Ge2

Abstract We report the soft X-ray angle-resolved photoemission study for LaNi 2 Ge 2 to reveal the electronic structures derived from non-4 f bands of the heavy fermion compound CeNi 2 Ge 2 . The photoemission spectra recorded at the La M 4,5 absorption edges clearly show the enhancement of the La 5 d components in the valence band spectra. The circular dichroism of photoemission spectra reveals the band-dependent dichroic response due to the orbital symmetry.