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Simple patterning of spray-deposited Y-Ba-Cu-O films

A new patterning method suitable for spray-deposited Y-Ba-Cu-O films has been demonstrated. The method is a single-step process, based on the application of metal stencil masks to define a desired pattern. Lines less than 50 mu m wide, with superconducting properties identical to these of unpatterned films, have been successfully deposited.