Chemical Solution Deposition of Epitaxial YBa2Cu3O7-x /CeO2/ La2Zr2O7 Multilayer Films on Biaxially-Textured Ni-W Tapes
نویسندگان
چکیده
CeO2/La2Zr2O7 composite buffer layers were deposited on Ni-W tapes using chemical solution method. YBa2Cu3O7-x (YBCO) films were then deposited on the CeO2/La2Zr2O7 composite buffer layers using a low-fluorine solution route. Effect of the annealing temperature and annealing atmosphere on the texture of the CeO2 layers was investigated. It was found that CeO2 film annealed at 1000°C under the atmosphere of N2 containing of 5vol. %H2 shows a high degree of c-orientation on La2Zr2O7 (LZO) film. Effect of oxygen partial pressure on the properties of YBCO films deposited on the CeO2/LZO buffer layers was also investigated. The YBCO annealed under N2 containing of 500ppm O2 shows the optimal properties, with critical current density (Jc) of 1MA/cm 2 at 77K, 0T.
منابع مشابه
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