Enhanced flux pinning properties in superconducting YBa(2)Cu(3)O(7-Z) films by a novel chemical doping approach

Pure and cobalt-doped superconducting YBa(2)Cu(3)O(7-Z) (YBCO) films were prepared on (001) LaAlO(3) substrate by a newly developed polymer-assisted metal organic deposition method. The cobalt-doped YBCO films display much denser and smoother surface microstructures and the superconducting transitio...

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Bibliographic Details
Published inPhysica. C, Superconductivity Vol. 493; pp. 104 - 108
Main Authors Wang, W T, Pu, M H, Lei, M, Zhang, H, Wang, Z, Cheng, C H, Zhao, Y
Format Journal Article
LanguageEnglish
Published 15.10.2013
Subjects
DEPOSITION
Doping
Flux pinning
JOINTS
MICA
Microstructure
MICROSTRUCTURES
PINNING
SUPERCONDUCTIVITY
SUPERCONDUCTORS
Transition temperature
YBCO superconductors
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Summary:Pure and cobalt-doped superconducting YBa(2)Cu(3)O(7-Z) (YBCO) films were prepared on (001) LaAlO(3) substrate by a newly developed polymer-assisted metal organic deposition method. The cobalt-doped YBCO films display much denser and smoother surface microstructures and the superconducting transition temperature T(c) spans a small range of 1.7 K with the doping levels. Significantly enhanced flux-pinning properties have been obtained for dilute cobalt-doped film. This may be attributed to the good grain connections and the effective flux pinning centers introduced by cobalt doping.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0921-4534