Circular dichroism in resonant angle-resolved photoemission spectra of LaNi2Ge2

We report the soft X-ray angle-resolved photoemission study for LaNi2Ge2 to reveal the electronic structures derived from non-4f bands of the heavy fermion compound CeNi2Ge2. The photoemission spectra recorded at the La M4,5 absorption edges clearly show the enhancement of the La 5d components in the valence band spectra. The circular dichroism of photoemission spectra reveals the band-dependent dichroic response due to the orbital symmetry.