J. Phys. IV France 09 (1999) Pr8-683-Pr8-687
YSZ/CeO2/YBCO heterostructures grown in-situ by pulsed injection CVDA. Abrutis
Vilnius University, Department of General and Inorganic Chemistry, Naugarduko 24, 2006 Vilnius, Lithuania
A great improvement of YBCO film properties on YSZ substrates was obtained by a simple in-situ insertion of a thin CeO2 buffer layer between YSZ and YBCO. CeO2/YBCO hetreostructures on YSZ were deposited by a new pulsed injection CVD technique. The CeO2 buffer layer stopped Zr diffusion from the substrate into the film, improved the YBCO film epitaxy and increased Jc up to 4-5.106 A cm-2 at 77 K. The thickness of buffer layers in the range of 20-160 nm had but little influence on YBCO film properties.
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