Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Producing josephson junction – per se
Patent
1992-03-19
1999-08-31
King, Roy V.
Superconductor technology: apparatus, material, process
Processes of producing or treating high temperature...
Producing josephson junction, per se
505474, 505190, 505702, 505732, 427 62, H01L 3924
Patent
active
059453834
ABSTRACT:
A method of producing a high temperature superconductor Josephson element and an improved SNS weak link barrier element is provided. A YBaCuO superconducting electrode film is deposited on a substrate at a temperature of approximately 800.degree. C. A weak link barrier layer of a nonsuperconducting film of N--YBaCuO is deposited over the electrode at a temperature range of 520.degree. C. to 540.degree. C. at a lower deposition rate. Subsequently, a superconducting counter-electrode film layer of YBaCuO is deposited over the weak link barrier layer at approximately 800.degree. C. The weak link barrier layer has a thickness of approximately 50 .ANG. and the SNS element can be constructed to provide an edge geometry junction.
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King Roy V.
Kusmiss John H.
The United States of America as represented by the Administrator
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