Increased critical current density and pinning in thick Ag/YBa sub(2)Cu sub(3)O sub(7-x) multilayers

We have investigated the superconducting properties of Ag/YBa sub(2)Cu sub(3)O sub(7-x) thick multilayers grown by Pulsed Laser Deposition, and found that the artificial pinning centres induced by Ag nanodots lead to a significant increase in critical current, especially in high applied magnetic fie...

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Bibliographic Details
Published inPhysica. C, Superconductivity Vol. 470; no. 20; pp. 1238 - 1241
Main Authors Dang, V S, Mikheenko, P, Sarkar, A, Kechik, MMAwang, Abell, J S, Crisan, A
Format Journal Article
LanguageEnglish
Published 01.11.2010
Subjects
COMPOSITES
COPPER OXIDE
CURRENT DENSITY
INTERLAYERS
MAGNETIC FIELD
Magnetic fields
MICROSTRUCTURES
Multilayers
Nanocomposites
Nanomaterials
Nanostructure
PINNING
Silver
SUPERCONDUCTIVITY
YTTRIUM OXIDE
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Summary:We have investigated the superconducting properties of Ag/YBa sub(2)Cu sub(3)O sub(7-x) thick multilayers grown by Pulsed Laser Deposition, and found that the artificial pinning centres induced by Ag nanodots lead to a significant increase in critical current, especially in high applied magnetic fields. Transmission Electron Microscopy showed a columnar growth of YBa sub(2)Cu sub(3)O sub(7-x) induced by Ag nanodots, while angle-dependent transport measurements revealed the existence of strong, both isotropic and c-axis correlated, artificial pinning centres.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0921-4534
DOI:10.1016/j.physc.2010.05.083