Abstract

We report on the crystal structure transformation and superconducting phase diagrams for a PbmBi100−m (0 < m < 100 in %) alloy. The superconducting coupling strength is resolved by analyzing the dependency of TC on the applied magnetic field. The phase diagram shows evidence for strong-coupling s-wave superconductivity for all alloys of PbmBi100−m and the dependency of the superconducting parameters on the weight percent of each constituent phase is discussed in the phase diagram. Very strong coupling of 2Δo/kBTC ∼ 5.174 is observed in the present PbmBi100−m phase diagram.

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