Abstract

The self-consistent equation of the band calculation, which can be used for both metals and ionic crystals, is derived in the limit of the statistical exchange approximation and the muffin tin approximation. By G.F.M. the self-consistent calculations of energy bands for Cu and Al have been carried out and they are compared with the former results by self-consistent APW method. The excellent agreement is obtained. For vanadium metal the results by another self-consistent procedure, which was proposed by Wakoh, are compared with those by this Hartree-Fock-Slater self-consistent one. When the original Slater exchange is reduced about 0.8 times the two results coincide fairly well. Some practical remarks on the self-consistent band calculation are also given.

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