Abstract
The superconducting state parameters (SSPs) such as electron-phonon coupling strength (λ), Coulomb pseudopotential (μ*), transition temperature (TC), effective interaction strength (N0V) and isotopic effect parameter (α) of some binary alloys (In1−CPbC, In1−CSnC, In1−CTlC, and Pb1−CTlC) have been studied theoretically by using pseudopotential theory. Results of SSPs of alloys are found to be in good agreement with other theoretical and available experimental results. Further, applicability of present approach at high pressure has also been justified by carrying out study of SSPs of these alloys as a function of compressed volume using Debye–Gruneisen model. Critical volume at which superconductivity quenches has been predicted by different approaches for all the alloys. The results of critical volume obtained by different approaches are also found to be in excellent agreement with each other. It is important to point out that the presently used pseudopotential is found to be transferable at high pressure because no fitting/refitting of pseudopotential parameters has been done during course of calculation at high pressure.
Published Version
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