Renormalized Atoms and the Band Structure of Transition Metals

A microscopic interpretation of ${\epsilon }_d$, the mean $d$-band energy in the Heine-Hubbard interpolation description of the transition metals, and of $\epsilon \left({\Gamma }_1\right)$, the bottom of the conduction bands, is given in terms of a "renormalized atom" concept. The implication for the cohesive energy of the transition metals is considered within the same framework and contrasted to the alkali metals.