Research on the Characteristics of Multilayer YBCO Superconducting Film Prepared with TFA-MOD Method AITranslate

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Chinese Library Classification Number:TB43[一般工业技术]

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Five-layer YBa2Cu3O7-δ film was prepared on LaAlO3 single crystal substrate by TFA-MOD, with total film thickness of 1 μm,critical current density （Jc） of 1.6 MA/cm^2 and critical current （L） of 160 A/cm. The Jc values of single-layer film and three-layer film are 3.5 MA/cm^2 and 1.75 MA/cm^2 ,respectively. No cracks and obvious pores are observed in cross-sectional TEM images of three-layer film and five-layer film, and interfaces among the layers are smooth. With the increase of film thickness, critical current density decreases ,probably caused by film performance degradation.