Abstract
One of the K-based binary alloys – K1-XRbX has been studied in the present work. Various thermodynamical properties are computed with the help of pseudopotential theory. The combination of successive elements of the alkali group has been selected for the formation of binary alloys. The well-behaved pseudopotential proposed by Fiolhais et al. is used for the whole calculation. Eight various local field correction functions (namely Hartree (H), Hubbard-Shame (HS), Nagy (N), Vashishtha-Singwi (VS), Taylor (T), Sarkar et al. (S) Ichimaru-Utsumi (IU) and Farid et al .(F) are employed to determine the effect of exchange and correlation on bare ion potential. The present thermodynamical study is based on the successful approach suggested by Gibbs-Bogoliubov (GB). The article includes the calculation of different parts of energy (E), entropy(S) and Helmholtz free energy (EH). The good agreement of the present data with the other theoretical data as well as experimental data is found.
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