Pulsed laser deposition of YBCO and NBCO using experimental design
Thin films of YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO) and NdBa/sub 2/Cu/sub 3/O/sub 7-x/ (NBCO) were grown by pulsed laser deposition (PLD). The experiment was planned using experimental design to investigate the relative importance of the individual growth parameters for the properties of the films. For both materials critical temperatures close to 90 K were obtained. The electrical and morphological properties of the films were correlated to the growth conditions using regression analysis. For NBCO, regions where both electrical and morphological properties were optimised could be found, while for YBCO we found that the main factors that lead to high critical temperatures also lead to a substantial increase in the surface roughness.