Zur Zustandsdichte der Übergangsmetalle

Abstract

X-ray bremsstrahlung isochromats of the hcp metals Sc, Ti, Y, Zr, Lu, Hf and of the fcc metals La, Ce have been measured with high resolution under comparable conditions. The isochromats show, that the width of the conduction band (d-band) grows from the 3d-to the 5d-row of the periodic table; within each row a rigid-band-model seems to be valid. In the 5d-row only Lu fits well into this general trend of the transition metals: an X-ray spectroscopic argument, that Lu, but not La, should be placed below Sc and Y in the periodic table. Long range, low frequency spin fluctuations, which appear in Sc, Y, Lu, are not visible in the observed isochromat curves.