DocumentCode
1240711
Title
Oxide buffer layer with perovskite structure for YBa2Cu3O7-x coated conductors prepared by metal-organic deposition method
Author
Takechi, A. ; Matsumoto, K. ; Osamura, K.
Author_Institution
Dept. of Mater. Sci. & Eng., Kyoto Univ., Japan
Volume
13
Issue
2
fYear
2003
fDate
6/1/2003 12:00:00 AM
Firstpage
2551
Lastpage
2554
Abstract
For fabricating YBa2Cu3O7-x (YBCO) coated conductors on metal substrates with high critical current density (Jc), deposition of oxide buffer layers is very important. BaZrO3 (BZO) and BaSnO3 (BSO) with a perovskite structure have excellent chemical compatibility with YBCO and good lattice matching with oxide substrates, including NiO buffer by surface oxidation epitaxy process. We have fabricated BZO or BSO buffer layers on SrTiO3 single-crystal substrates by metal-organic deposition (MOD) method, in order to investigate the effects of buffer layers on superconducting properties of YBCO films. Jc of YBCO films deposited by pulsed laser deposition on BZO reached 0.29 MA/cm2 (77 K, 0 T).
Keywords
barium compounds; crystal structure; high-temperature superconductors; lattice constants; liquid phase deposited coatings; nickel compounds; pulsed laser deposition; superconducting tapes; superconducting thin films; yttrium compounds; 77 K; BaZrO3; NiO; SrTiO3; YBa2Cu3O7-x; YBa2Cu3O7-x coated conductors; high critical current density chemical compatibility; high temperature superconductor; lattice matching; metal-organic deposition method; oxide buffer layer; perovskite structure; pulsed laser deposition; surface oxidation epitaxy process; Buffer layers; Chemical processes; Conductors; Critical current density; Lattices; Oxidation; Pulsed laser deposition; Substrates; Superconducting films; Yttrium barium copper oxide;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2003.811845
Filename
1212136
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