In situ all-laser process for deposition of Y1Ba2Cu3O7−δ film on stainless steel involving use of Y-ZrO2-Ag composite as a barrier layer

Abstract
Highly c‐axis oriented good‐quality (Tc of 88 K and Jc of 105 A/cm2 at 20 K) thin films of Y1Ba2Cu3O7−δ have been deposited on stainless‐steel substrates by an in situ all‐laser process involving use of laser‐deposited Y‐ZrO2‐Ag composite film as a barrier layer. These results are compared with those obtained for the case of the use of a bilayer configuration of Ag and Y‐ZrO2 to emphasize the importance of employing a composite film as a barrier layer.