Electronic density of states for the perovskites

It is shown that the density of states including all of the 14 primary conduction and valence bands of crystals with the perovskite structure can be derived from simple analytic functions of dimensionless variables. Good quantitative agreement with recent energy-band calculations is demonstrated for the electronic density of states of Re${\mathrm{O}}_3$, SrTi${\mathrm{O}}_3$, KTa${\mathrm{O}}_3$, and NaW${\mathrm{O}}_3$.