Long length fabrication of YBCO on rolling assisted biaxially textured substrates (RABiTS) using pulsed laser deposition

Abstract

The continuous deposition of multi-layer oxide films on moving long-length metallic substrates using pulsed laser deposition (PLD) is reported. Epitaxial YBCO/CeO/sub 2//yttria-stabilized zirconia (YSZ)/CeO/sub 2/ layers were grown on 1 cm/spl times/10 cm rolled-Ni tape substrates. The Ni tape was heated radiatively and translated while oxide layers were continuously deposited. The thickness and composition along the moving direction were uniform to within /spl plusmn/7% and /spl plusmn/5%, respectively. The biaxial texture of the 10 cm Ni tape was transferred through the buffer layers to the topmost YBCO during the continuous deposition. The in-plane and out-of-plane texturing of YBCO and buffer layers were uniform along the scanning direction with variations less than /spl plusmn/10% and /spl plusmn/5%, respectively. The average transport zero field J/sub c/ (77 K) for numerous 10 cm samples was about 200,000 A/cm/sup 2/, with the highest J/sub c/ and I/sub c/ values at 77 K, 0 T of 270,000 A/cm/sup 2/ and 16.7 A respectively. This study demonstrates the feasibility of continuous multilayer, multi-component oxide film deposition on rolled-textured metal with uniform thickness, composition, and crystallographic orientation using PLD.