Series arrays of superconducting-normal-superconducting junctions in the Pb-Sn lamellar eutectic alloy

Series arrays of about/100 superconducting‐normal‐superconducting junctions have been obtained in the oriented Pb‐Sn lamellar eutectic alloy. The temperature and normal width dependences of the critical currents flowing through these S‐N‐S structures have been studied and can be explained in the framework of the Bardeen‐Johnson theory for systems in the clean limit.