Fabrication of in-plane aligned YBCO films on polycrystalline Ni tapes buffered with surface-oxidized NiO layers

Author

Matsumoto, K. ; Seokbeom Kim ; Jian-Guo Wen ; Hirabayashi, I. ; Watanabe, T. ; Uno, N. ; Ikeda, M.

Author_Institution

Supercond. Res. Lab., ISTEC, Nagoya, Japan

Volume

9

Issue

2

fYear

1999

fDate

6/1/1999 12:00:00 AM

Firstpage

1539

Lastpage

1542

Abstract

Strongly in-plane aligned, c-axis oriented YBCO films were successfully grown on polycrystalline nickel tapes buffered with [100]-oriented NiO layers. The in-plane and out-of-plane alignments of the NiO layer were achieved by a surface-oxidation epitaxy (SOE) technique using a [100]<001> cube-textured nickel tape. The in-plane textures of NiO layers fabricated so far with the full width half maximum (FWHM) values of 11-13 degrees are sufficient for the epitaxial growth of high-J/sub c/ YBCO films. Pulsed laser deposited YBCO layers on the NiO/Ni tapes were not only c-axis oriented with respect to the type surface, but also strongly in-plane aligned. The YBCO films on NiO/Ni tapes have a zero resistance T/sub c/=87 K and J/sub c/=10/sup 4/-10/sup 5/ A/cm/sup 2/ at 77 K.

Keywords

barium compounds; critical current density (superconductivity); high-temperature superconductors; pulsed laser deposition; superconducting epitaxial layers; superconducting thin films; superconducting transition temperature; yttrium compounds; 87 K; NiO; YBa/sub 2/Cu/sub 3/O/sub 7/; high temperature superconductor; in-plane aligned YBCO films; polycrystalline Ni tapes; pulsed laser deposited films; surface-oxidation epitaxy; surface-oxidized NiO buffer layer; Epitaxial growth; Fabrication; Nickel; Optical pulses; Oxidation; Pulsed laser deposition; Substrates; Superconducting films; Surface cleaning; Yttrium barium copper oxide;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.784687

Filename

784687