Scaling behavior of YBa sub 2 Cu sub 3 O sub 7 minus. delta. thin-film weak links

Journal Article · Mon Sep 10 00:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.104223· OSTI ID:6445754

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

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1. School of Applied and Engineering Physics, Cornell University, Ithaca, NY (USA)

The superconductive weak link properties of microbridges formed in {ital c}-axis normal YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} polycrystalline thin films containing a variable amount of large angle tilt boundaries have been studied. In the low critical current density limit these weak links have current-voltage ({ital I}-{ital V}) characteristics that are accurately modeled by the resistively shunted junction model. The {ital I}-{ital V}'s are found to accurately follow a simple scaling law with the product of the critical current and weak link resistance {ital R}{sub {ital n}} varying linearly with the weak link conductance.

• OSTI ID: 6445754
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 57:11; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CONTACTS
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
FILMS
HIGH-TC SUPERCONDUCTORS
JUNCTIONS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES