High temperature superconductive films and methods of making them

摘要

Described is a superconductive layered structure and an article including this superconductive layered structure on a substrate structure. The superconductive layered structure comprises a stack including at least one bi-layered assembly formed by first and second layers of similar superconducting material compositions, the second layer being superconductive at predetermined temperature condition, the first layer being a substantially thin layer and having a c lattice parameter selected in accordance with those of the substrate structure and the second layer, such that said first layer is non-superconductive at said predetermined temperature condition thereby allowing the second superconductive layer to be desirably thick to provide high critical current density of the superconductive layer.

主权项

1. A superconductive layered structure for placing on a substrate structure, the superconductive layered structure comprising:
a stack including at least one bi-layered assembly formed by first and second layers of similar superconducting material compositions, the second layer being superconductive at predetermined temperature condition, the first layer being a substantially thin layer and having a c lattice parameter selected in accordance with those of the substrate structure and the second layer, such that said first layer is non-superconductive at said predetermined temperature condition thereby allowing the second superconductive layer to be desirably thick to provide high critical current density of the superconductive layer.