Patent ID: 7687436

Claim:
A method of forming a superconductive film, the method comprising: providing a target having a first portion of a superconductive material and a second portion of a non-superconductive material, wherein the providing the target further comprises providing a first pressed disc comprising the superconductive material and defining a disc thickness; providing a second pressed disc comprising the non-superconductive material; removing a wedge-shaped cutout section from the first pressed disc to leave a wedge-shaped groove in the first pressed disc, the first pressed disc with the wedge-shaped cutout section so removed defining said first portion of said target; removing a sector-shaped portion from the second pressed disc, the sector-shaped portion configured to fit within the wedge-shaped groove in the first pressed disc; and bonding the sector-shaped portion within the wedge-shaped groove of the first pressed disc, the sector-shaped portion so bonded within the insert region defining said second portion of said target; providing a substrate a distance from said target; rotating said target at a desired speed to obtain a predetermined pulse ratio of said superconductive material to said non-superconductive material; and striking said rotating target with a laser to provide said substrate with a film of said superconductive material, said film having a random inclusion of nanometer-sized particulates of said non-superconducting material for flux pinning enhancement.