Title :
Pulsed laser deposition of YBCO and NBCO using experimental design
Author :
Eulenburg, A. ; Romans, E.J. ; Pegrum, C.M.
Author_Institution :
Dept. of Phys. & Appl. Phys., Strathclyde Univ., Glasgow, UK
fDate :
6/1/1999 12:00:00 AM
Abstract :
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.
Keywords :
barium compounds; design of experiments; high-temperature superconductors; neodymium compounds; pulsed laser deposition; statistical analysis; superconducting thin films; superconducting transition temperature; surface topography; yttrium compounds; 90 K; NdBa/sub 2/Cu/sub 3/O/sub 7-x/; NdBa/sub 2/Cu/sub 3/O/sub 7/; YBa/sub 2/Cu/sub 3/O/sub 7-x/; YBa/sub 2/Cu/sub 3/O/sub 7/; critical temperature; electrical properties; experimental design; film properties; growth parameters; morphological properties; pulsed laser deposition; regression analysis; surface roughness; Design for experiments; Optical materials; Optical pulses; Pulsed laser deposition; Regression analysis; Rough surfaces; Sputtering; Surface roughness; Temperature; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
