Superconducting State Parameters of Be-Zr Glassy Alloys

Authors : Aditya M. VORA

Pages : 219-226

Doi:10.3906/sag-1211-43

View : 15 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The theoretical investigation of the superconducting state parameters insert ignore into journalissuearticles values(SSP); viz. electron-phonon coupling strength l , Coulomb pseudopotential m*, transition temperature TC , isotope effect exponent a and effective interaction strength NO V of Bec Zr1-c insert ignore into journalissuearticles values(c= 0.30, 0.35, 0.40 and 0.45); metallic glasses have been reported using Ashcroft`s empty core insert ignore into journalissuearticles values(EMC); model potential for the first time. Five local field correction functions proposed by Hartree insert ignore into journalissuearticles values(H);, Taylor insert ignore into journalissuearticles values(T);, Ichimaru-Utsumi insert ignore into journalissuearticles values(IU);, Farid et al. insert ignore into journalissuearticles values(F); and Sarkar et al. insert ignore into journalissuearticles values(S); are used in the present investigation to study the screening influence on the aforesaid properties. It is observed that the electron-phonon coupling strength l and the transition temperature TC are quite sensitive to the selection of the local field correction functions, whereas the Coulomb pseudopotential m*, isotope effect exponent a and effective interaction strength NO V show weak dependences on the local field correction functions. The TC obtained from H-local field correction function are found an excellent agreement with available theoretical or experimental data. Also, the present results are found in qualitative agreement with other such earlier reported data, which confirms the superconducting phase in the metallic glasses.
Keywords : Pseudopotential, superconducting state parameters, Be Zr metallic glasses