Abstract
In presented paper the superconducting properties of compressed CaLi2 compounds have been calculated for P21/c phase. Energy gap, critical temperature and electron effective mass are analyzed within the framework of the strong-coupling Eliashberg theory for a wide range of Coulomb pseudopotential μ⋆∈〈0.1,0.3〉. It has been stated that Δ(0) decreases from 6.01meV to 3.62meV, TC decreases from 29.31K to 18.16K and dimensionless ratio 2Δ(0)/kBTC decreases from 4.76 to 4.64 dependently on the assumed value of the Coulomb pseudopotential. Moreover, it has been proved, that the ratio of the electron effective mass to the electron band mass me⋆/me is high in the whole range of the superconducting phase existence and reaches its maximum equal to 3.73 for the critical temperature regardless of the value of Coulomb pseudopotential.
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