Abstract
An experimental method for determining the densities of states in solids based on photoemission and optical measurements is described and illustrated with data from Cu and Ni. Densities of states for Cu, Ag, Ni, and Fe determined by this technique are presented. The Cu density of states is found to be in reasonable agreement with the band calculations of Burdick except for the appearance of a rather large peak in the experimentally determined density of states 6.2 eV below the Fermi surface. The Ni density of states is dominated by a strong maximum 4.5 eV below the Fermi level. This maximum is not predicted either by recent band calculations or by the rigid band model using the Cu density of states. Recent suggestions of Phillips and Mott concerning this are outlined.
Published Version
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