High Temperature Superconductor/Insulator Composite Thin Films With Josephson Coupled Grains.
Patent, Filed 28 Aug 97, Filed 30 Mar 99
DEPARTMENT OF THE NAVY WASHINGTON DC
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High temperature superconductor composite thin film devices with easily moved Josephson vortices are described having high Tsub c and good magnetic vortex properties. A preferred composite material was YBCOCeOsub 2 thin film on a MgO substrate. The superconductor composites were preferably formed by off-axis co-sputtering. A surprising recovery in properties was seen after plasma etching with oxygen.
- Electricity and Magnetism