Patent ID: 7312182

Claim:
A thin film high T c structure, comprising: a plurality of thin films constructed of a compound having the general formula Sr 2 RESbO 6 wherein RE is a rare earth metal, said RE being Lutetium; said plurality of thin films being composed of Sr 2 LuSbO 6 ; said plurality of thin films being interspersed with a plurality of layers constructed of a copper oxide superconductor; said plurality of thin films being deposited by pulsed laser deposition and being heated for at least 20 hours at between 750° C. to 825° C.; said plurality of thin films having an ordered perovskite cubic crystalline structure; said plurality of thin films having a low dielectric constant of 15.1; said general formula including an Sb 5+ constituent atom with a polarizability of about 1.2 Å 3 ; and said plurality of thin films having a low dielectric loss of less than 1×10 −3 without a phase transition.