Neutron-induced microwave loss in ceramic YBa sub 2 Cu sub 3 O sub 7 minus. delta

An increase by over three orders of magnitude from 0.58 m{Omega} to 1.17 {Omega} was observed at 4.0 K in the 3 GHz microwave surface resistance of ceramic YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} following exposure to neutrons. The transport resistivity of an unirradiated pellet was linear in temp...

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Bibliographic Details
Published in:Applied physics letters 1990-06, Vol.56:24
Main Authors: Cooke, D.W., Jahan, M.S., Brown, R.D., Ott, K.C., Gray, E.R., Smith, J.L., Willis, J.O., Bennett, B.L., Maez, M.A., Peterson, E.J., Hults, W.L., Coulter, J.Y., Portis, A.M., Piel, H., Klein, N., Mueller, G., Hein, M.
Format: Article
Language:English
Subjects:
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
BARYONS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LASL
MATERIALS SCIENCE
NATIONAL ORGANIZATIONS
NEUTRONS
NUCLEONS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
US AEC
US DOE
US ERDA
US ORGANIZATIONS
YTTRIUM COMPOUNDS 360206 > Ceramics, Cermets, & Refractories-- Radiation Effects
YTTRIUM OXIDES
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Summary:An increase by over three orders of magnitude from 0.58 m{Omega} to 1.17 {Omega} was observed at 4.0 K in the 3 GHz microwave surface resistance of ceramic YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} following exposure to neutrons. The transport resistivity of an unirradiated pellet was linear in temperature down to {ital T}{sub {ital c}} with a room-temperature value of 2.13 m{Omega} cm and a resistivity extrapolated to 4.0 K of 0.53 m{Omega} cm. Following irradiation, the resistivity rose with decreasing temperature from a room-temperature value of 1.5 {Omega} cm to a maximum at around 45 K with little change evident at {ital T}{sub {ital c}} . These results, in conjunction with eddy current, susceptibility, iodometric titration, and thermally stimulated luminescence measurements on irradiated and unirradiated samples, collectively suggest that the effect of neutron irradiation has been to decrease intergranular coupling without the development of an insulating phase.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.103256