Semiempirical pseudopotential approach to Green's-function formalism of electronic states in heavily doped semiconductors

A semiempirical pseudopotential method is presented for calculating the electronic states in heavily doped semiconductors in terms of the one-electron Green's function. The present method is an improvement on the previously published one. The theory is tested using experimental data on $p$-type III-V compounds. It is shown that the impurity-band tails and the transport properties are well described by the present theory.