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We report the superconducting properties between a conventional strong-coupled Pb and weak-coupled Sn superconductor. A series of SnrPb1-r nanoalloys with various compositions r were synthesized, and their superconducting properties were measured using superconducting quantum interference devices (SQUIDs) magnetometer. Our results reveal a superconducting proximity effect (SPE) between immiscible Sn and Pb granules in the range of r = 0.2~0.9, as a weak superconducting coupling can be established with the coexistence of phonon hardening and increased Ginzburg–Landau coherence length. Furthermore, our results provide new insights into improving the study of the superconducting proximity effect introduced by Sn doping.

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Enhanced superconductingTcin the immiscible system (La1.85Sr

Cited by 4 publications

References 31 publications

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Local Structure and Superconducting Properties of Bi 2 Te 3 -Doped YBa 2 Cu 3 O 7 − δ

Lattice mismatching effect in composites systems

Structural and Superconducting Proximity Effect of SnPb Bimetallic Nanoalloys

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