A novel superconducting circuit and a process for fabricating the same

摘要

A superconducting circuit having patterned superconducting wiring lines. Each wiring line consists of at least one portion (2 min ) of the thin film (2) of an oxide superconductor deposited on a substrate (1). The portion (2 min ) has a predetermined crystal orientation and the remaining portions (2 sec ) have a different crystal orientation or changed to non-superconductor. The superconducting circuit has a planar surface. In variations, two different wiring lines (21, 22) each having a different crystal orientation are produced at different portions of a thin film of oxide superconductor, so that superconducting current flow separately through two different portions in a common thin film.