X-ray photoemission spectra and electronic structure of GdCo4B

New results on the electronic properties of GdCo4B are reported. This compo und crystallizes in the hexagonal CeCo4B type structure. The electronic str ucture has been studied by X-ray photoemission spectroscopy (XPS). The vale nce band (VB) of the X-ray photoemission spectra is determined mainly by th e Co(3d) and Gd(4f) bands. The VB spectrum is compared with ab initio elect ronic structure calculations performed with the linearized muffin-tin orbit al (LMTO) method. The calculated magnetic moment of 3.276 mu (B)/f.u. is in good agreement with the experimental value, 2.96 mu (B)/f.u., of the satur ation magnetization. (C) 2001 Elsevier Science Ltd. All rights reserved.