Study of superconducting state parameters of ternary metallic glasses through pseudopotential approach.

A theoretical investigation on the screening dependence of the superconducting state parameters (SSPs) viz. the electron-phonon coupling strength λ, the Coulomb pseudopotential μ∗, the transition temperature , the isotope effect exponent α and the effective interaction strength of some ternary metallic glasses such as TiBeZr, (MoRu)B, (MoRu)B, (MoRu)P, (MoRu)Si, (MoRu)B, (MoRu)Si, (MoRu)B, (MoRu)Si, (MoRu)Si, (MoRu)Si, (MoRu)Si and (MoRu)P is reported for the first time using Ashcroft's empty core (EMC) model potential. Five local field correction functions proposed by Hartree (H), Taylor (T), Ichimaru-Utsumi (IU), Farid (F) and Sarkar (S) are used in the present investigation to study the effect of screening on the aforesaid properties. It is observed that λ and are reasonably sensitive to the selection of the local field correction functions, whereas μ∗, α and show weak dependences on the local field correction functions. The transition temperature obtained from the H-local field correction function is found to be in excellent agreement with available experimental data. Also, the present results are found to be in qualitative agreement with other earlier reported data, which confirms the existence of the superconducting phase in the above ternary metallic glasses.