Anisotropy and Lorentz-force dependence of the critical currents in YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} thick films deposited on nickel-alloy substrates

Journal Article · Sun Oct 01 00:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.52.R9875· OSTI ID:239361

Safar, H; Coulter, J Y; Maley, M P; Foltyn, S; Arendt, P; Wu, X D; Willis, J O ^[1]

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1. Superconductivity Technology Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We investigate the angular dependence of the critical currents in YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} thick films deposited on metallic nickel-alloy substrates, with the aid of an yttria-stabilized zirconia buffer layer. Overall, the critical current shows a clear Lorentz-force dependence and two distinctive peaks, one for fields parallel to the {ital ab} plane, due to bulk intrinsic pinning by the layered structure of the superconductor, and the other for fields parallel to the {ital c} axis, which we attribute to twin-boundary {ital c}-axis correlated pinning, as suggested by its Lorentz-force dependence.

• OSTI ID: 239361
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 14 Vol. 52; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANISOTROPY
BARIUM OXIDES
COPPER OXIDES
CRITICAL CURRENT
EPITAXY
HIGH-TC SUPERCONDUCTORS
LORENTZ FORCE
SUPERCONDUCTING FILMS
YTTRIUM OXIDES