Unified Model for Superconductivity in Graphite Intercalation Compounds: Prediction of Optimum T_c and Suggestion for Its Realization

抄録

Based on the model that was successfully applied to KC₈, RbC₈, and CsC₈ in 1982, we have calculated the superconducting transition temperature T_c for CaC₆ and YbC₆ to find that the same model reproduces the observed T_c in those compounds as well, indicating that it is a unified model for superconductivity in the graphite intercalation compounds with T_c ranging over three orders of magnitude. Further enhancement of T_c well beyond 10 K is also predicted.