%0 Journal Article
%K Superconducting films
%K Texture
%K Alloys
%K Metals
%K Copper oxides
%K High−tc superconductors
%K Alignment
%K Barium oxides
%K Buffers
%K Critical current
%K Crystal growth
%K Film growth
%K Polycrystals
%K Quaternary compounds
%K Yttrium oxides
%K Zirconium oxides
%A Ronald P Reade
%A Paul H Berdahl
%A Stephen M Garrison
%A Richard E Russo
%B Applied Physics Letters
%D 1992
%F Laser
%G eng
%N 18
%P 2231-2233
%R 10.1063/1.108277
%T Laser deposition of biaxially textured yttria‐stabilized zirconia buffer layers on polycrystalline metallic alloys for high critical current Y‐Ba‐Cu‐O thin films
%V 61
%2 LBNL-32886
%8 11/1992
%! Appl. Phys. Lett.
%X <p>Pulsed laser deposition of yttria-stabilized zirconia (YSZ) layers on polycrystalline metallic alloy substrates is used to produce an intermediate layer for YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> (YBCO) thin-film growth. The desired (001) YSZ texture is obtained at 1.0 mTorr oxygen pressure and 70&thinsp;°C. Significant improvement in (001) texturing is demonstrated by using an ion beam to assist growth. Argon-ion-assisted growth produces layers with alignment of the in-plane crystal axes in addition to the (001)-normal texture. Highly <em>c</em>-axis-oriented biaxially aligned YBCO thin films can be deposited on these layers, with <em>T</em><sub><em>c</em></sub>(<em>R</em>=0)=92 K and <em>J</em><sub><em>c</em></sub> (77 K, <em>B</em>=0 T)=6×10<sup>5</sup> A/cm<sup>2</sup> and <em>J</em><sub><em>c</em></sub> (77 K, 0.4 T)=8×10<sup>4</sup> A/cm<sup>2</sup>. With further improvement of the YSZ texture, the YBCO current-carrying capacity of films on polycrystalline metallic alloys may approach that of films on single-crystal substrates.</p>