Using the KKRZ method, the selfconsistent band structures of the alkali metals have been calculated. The calculations give good agreement with experimental Fermi surface measurements, except for caesium where contact with the Zone boundary is predicted. It is also found that the effects of the actual interstitial potential, compared with assuming it to be constant, are negligible.
H. EckardtL. FritscheJ. Noffke
D. L. PriceK. S. SingwiM. Tosi