Enhanced Pinning in Mixed Rare Earth-123 Films.

摘要

An superconductive article and method of forming such an article is disclosed, the article including a substrate and a layer of a rare earth barium cuprate film upon the substrate, the rare earth barium cuprate film including two or more rare earth metals capable of yielding a superconductive composition where ion size variance between the two or more rare earth metals is characterized as greater than zero and less than about 10 times 10(sup -4), and the rare earth barium cuprate film including two or more rare earth metals is further characterized as having an enhanced critical current density in comparison to a standard YBa(sub 2)Cu(sub 3)O(sub y) composition under identical testing conditions.