Laser patterning of YBaCuO weak link bridges

Conference · Tue Feb 28 23:00:00 EST 1989 · IEEE Trans. Magn.; (United States)

OSTI ID:5919780

Weiner-Avnear, E; Cooper, J E; Kerber, G L; Spargo, J W; Toth, A G; Josefowicz, J Y; Rensch, D B; Clemens, B M; Hunter, A T

A laser ablation process was developed to pattern thin film superconducting devices with 1 ..mu..m resolution. The process was utilized to fabricate bridge structures in high T/sub c/(T/sub c/ > 90K) YBaCuO superconducting thin films sputtered on various substrates. For bridges patterned on thin films with a high degree of polycrystallinity, the authors we observed weak link Josephson behavior, from 4.2K up to T/sub c/. The weak link behavior was attributed to grain boundary superconducting tunneling. The results suggest that direct laser patterning can be a powerful technique for evaluation and optimization of prototype superconducting devices.

• Research Organization: Hughes Microelectronics Center, Carlsbad, CA (US); Hughes Research Labs., Malibu, CA (US)
• OSTI ID: 5919780
• Report Number(s): CONF-880812-
• Journal Information: IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. 25:2; ISSN IEMGA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
420201* -- Engineering-- Cryogenic Equipment & Devices
656003 -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
FABRICATION
FILMS
JOSEPHSON JUNCTIONS
JUNCTIONS
OXIDES
OXYGEN COMPOUNDS
RESOLUTION
SPUTTERING
SUPERCONDUCTING DEVICES
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES