Critical temperatures in proximity coupled Nb/Pd_(0.86)Ni_(0.14) bilayers

摘要

The proximity effect between a superconductor (S) and a weak ferromagnet (F) in sputtered Nb/Pd_(0.86)Ni_(0.14) bilayers has been studied. The superconducting critical temperature behavior was studied in the framework of a recent theoretical model, in two different approximations, which both give the same final results, allowing to estimate the exchange energy of the ferromagnet and the interface transparency of the S/F barrier.