Abstract

Chemical solution deposition (CSD) was used to grow high-quality (100) oriented films ofSrTiO3 (STO)on CSD CaTiO3 (CTO), Ba0.1Ca0.9TiO3 (BCT) and STO seed and template layers. These template films bridge the lattice misfitbetween STO and the nickel–tungsten (NiW) substrate, assisting in dense growth oftextured STO. Additional niobium (Nb) doping of the STO buffer layer reduces oxygendiffusion which is necessary to avoid undesired oxidation of the NiW. The investigatedtemplates offer suitable alternatives to established standard buffer systems likeLa2Zr2O7 (LZO)and CeO2 for coated conductors.

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