Patent ID: 6016433
Filing Date: 2000-01-18
Classification: H01L

Abstract:
An oxide superconductor Josephson junction element comprising a substrate and, on said substrate, oxide superconductors oriented in the c-axis direction with respect to said substrate, and an a-axis or b-axis oriented oxide superconductor, sandwiched between said c-axis oriented superconductors, said a-axis or b-axis oriented oxide superconductor having opposing sides contacting said c-axis oriented superconductors along crystal boundaries defining a junction plane extending across said c-axis oriented superconductors in a direction perpendicular to the a-axis of the a-axis oriented superconductor or to the b-axis of the b-axis oriented superconductor, the crystal boundaries between said a-axis or b-axis oriented oxide superconductor and each of said c-axis oriented superconductors forming a weak link of the Josephson junction, and said a-axis or b-axis oriented oxide superconductor having a c-axis perpendicular to said junction plane, parallel to the (110) plane of said c-axis oriented superconductors and inclined at an angle of 45 degrees with respect to the (100) plane or (010) plane of said c-axis oriented superconductors.