Josephson-like properties of YBa sub 2 Cu sub 3 O sub 7 thin film weak links

Conference · Thu Feb 28 23:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5922092

Lathrop, D K; Russek, S E; Moeckly, B H; Chamberlain, D; Penenson, L; Buhrman, R A; Shin, D H; Silcox, J ^[1]

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1. Cornell Univ., Ithaca, NY (United States). School of Applied and Engineering Physics

This paper reports on thin film YB{sub 2}Cu{sub 3}O{sub 7} microbridges fabricated by photo- and e-beam lithography in poly-crystalline thin films grown on MgO substrates and containing a controlled density of large angle tilt boundaries, thereby isolating individual tilt-boundary weak links. Depending on the growth parameters of the film such weak links have critical current densities J{sub C} ranging from {lt}10{sup 4} A/cm{sup 2} to {gt}10{sup 6} A/cm{sup 2}. The higher J{sub C} microbridges exhibit behavior indicative of one-dimensional flux flow and flux creep in the weak links while the lower J{sub c} microbridges have RSJ-like properties.

• OSTI ID: 5922092
• Report Number(s): CONF-900944--
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Vol. 27:2; ISSN IEMGA; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
BEAMS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENT DENSITY
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRON BEAMS
ETCHING
FABRICATION
FILMS
FUNCTIONS
GRAIN BOUNDARIES
JOSEPHSON EFFECT
JUNCTIONS
LEPTON BEAMS
MATHEMATICAL MODELS
MICROSTRUCTURE
MICROWAVE RADIATION
NUCLEAR MODELS
OXIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
PHOTON BEAMS
PHYSICAL PROPERTIES
RADIATIONS
RESPONSE FUNCTIONS
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
SURFACE FINISHING
TRANSITION ELEMENT COMPOUNDS
WEAK-COUPLING MODEL
YTTRIUM COMPOUNDS
YTTRIUM OXIDES