N. Shino et al., PHOTOEMISSION, INVERSE-PHOTOEMISSION AND OPTICAL STUDIES OF RARE-EARTH HEXABORIDES, Journal of the Physical Society of Japan, 64(8), 1995, pp. 2980-2987
Electronic structures of rare-earth hexaborides (RB(6)) have been inve
stigated by photoemission and inverse photoemission spectroscopy. The
X-ray photoemission (XPS) features of the 3d and 4d core states of hea
vy R elements are interpreted in comparison with the multiplet calcula
tion. The valence band spectra probed by XPS and X-ray bremsstrahlung
isochromat spectroscopy (X-BIS) methods are fully utilized to interpre
t the optical conductivity spectra.