YBaCuO and ZrO₂laser deposition on sapphire using two crossed laser beams

Results of YBaCuO and ZrO 2 laser deposition on sapphire are presented. A special deposition scheme used two crossed Nd: glass laser beams. A laser-deposited ZrO 2 layer was epitaxially grown. A superconductive YBaCuO laser-deposited layer on a ZrO 2 buffer film was c-axis oriented. T c of 89.5 K and J c (77 K) of 1.5*10 6 A cm -2 were measured for a YBaCuO film of 100 nm thickness deposited on a ZrO 2 sapphire substrate. The droplet density on the YBaCuO surface was smaller than 10 4 cm -2 .