Study on CexLa_(1-x)O_2 Buffer Layer used in Coated Conductors by Chemical Solution Method

Developing multi-functional single buffer layer is one of the most important challenges for simplification of coated conductors configuration.La-doped CeO2 films were prepared by chemical solution method.And surface morphology and texture quality of the La-doped CeO2 films were investigated in details.The results show that the as-obtained pore-free Ce0.9La0.1O2 film are epitaxially deposited on the textured NiW substrate.The 120nm thickness Ce0.9La0.1O2 film is obtained though multi-coating route.The YBCO film with Tco=90.5K,which is deposited on Ce0.9La0.1O2/NiW metallic template by PLD method.It suggects that Ce0.9La0.1O2 film prepared by chemical solution route have a promising prospect for the simplification of coated conductors configuration.