Screening-Dependent Study of Superconductivity in 3d-Transition Metals Binary Alloys Superconductors  

作　　者：Aditya M.Vora 

机构地区：[1]Parmeshwaxi 165, Vijaynagar Area

出　　处：《Communications in Theoretical Physics》2009年第3期533-539,共7页理论物理通讯（英文版）

摘　　要：In the present article, we report the screening-dependent study of the superconducting state parameters （SSPs）, viz. electron-phonon coupling strength A, Coulomb pseudopotential μ^＊, transition temperature TC, isotope effect exponent a, and effective interaction strength No V of 3d-band transition metals binary alloys superconductors have been made extensively in the present work using a model potential formalism and employing the pseudo-alloy-atom （PAA） model for the first time. Five local field correction functions proposed by Hartree （H）, Taylor （T）, Ichimaru-Utsumi （IU）, Farid et al. （F） and Sarkar et al. （S） are used in the present investigation to study the screening influence on the aforesaid properties. The present results of the SSPs obtained from H-screening are found in qualitative agreement with the available experimental data wherever exist.

关 键 词：PSEUDOPOTENTIAL superconducting state parameters （SSPs） 3d-band transition metals binary alloys superconductors 

分 类 号：O511[理学—低温物理]