Proton damage effects in YBa{sub 2}Cu{sub 3}O{sub 7}/YBa{sub 2}Cu{sub 2.79}Co{sub 0.21}O{sub 7}/YBa{sub 2}Cu{sub 3}O{sub 7} Josephson junctions

Journal Article · Tue Jul 01 04:00:00 EDT 1997 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.119517· OSTI ID:531727

Jackson, E M ^[1]; Weaver, B D ^[2]; Summers, G P ^[2]

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1. SFA, Inc., Landover, Maryland 20875 (United States)
2. Naval Research Laboratory, Code 6615, Washington, DC 20375-4350 (United States)

The effects of proton-induced defects on the properties of superconductor-normal-superconductor Josephson junctions with YBa{sub 2}Cu{sub 2.79}Co{sub 0.21}O{sub 7} barriers have been investigated. The resistance (R) increases linearly and the critical current (I{sub c}) decreases exponentially with fluence, respectively. Changes in I{sub c} and R occur only at fluences which also reduce T{sub c}. The results indicate that point defects probably have little influence on the uniformity of the I{sub c} and R in junction arrays. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 531727
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 2 Vol. 71; ISSN 0003-6951; ISSN APPLAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
BARIUM COMPOUNDS
BARIUM OXIDES
COBALT OXIDES
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL DEFECTS
ELECTRIC CONDUCTIVITY
HIGH-TC SUPERCONDUCTORS
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
POINT DEFECTS
PROTONS
RADIATION EFFECTS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES