YBCO films and CeO/sub 2//YSZ/CeO/sub 2/ buffer layers grown on Ni-Cr-W RABiTS with a Pd seed layer

摘要

A CeO/sub 2//YSZ/CeO/sub 2/ buffer layer structure was epitaxially deposited by pulsed laser deposition on a Pd seed layer grown on non magnetic Ni/sub 88/Cr/sub 8/W/sub 4/ alloy. Structural analyzes performed by x-ray diffraction and EBSD show a good texture, with typical YBCO FWHM of about 5/spl deg/ and 8.5/spl deg/ for in-plane and out-of-plane orientations, respectively. About 300 nm YBCO films deposited by PLD on such a buffer layer structure, show typical values of critical temperature of about 89 K and a critical current density greater than 0.6 MA/cm/sup 2/ at 77 K and self field.