Abstract YBa2Cu3O7-δ/BaZrO3 (YBCO/BZO) composite film with enhanced flux-pinning performance was prepared on LaAlO3 (LAO) substrate via a fluorine-free sol-gel method in combination with a novel photosensitive sol-gel lithography technique. Owing to the difference of lattice mismatch between the interfaces of YBCO/LAO and YBCO/BZO, high-density stacking faults were successfully introduced into YBCO matrix, which has been confirmed by XRD and HRTEM analysis. Magnetization measurement results indicate that YBCO/BZO composite film has a stronger current-carrying capacity than the pure YBCO film especially under applied magnetic fields. However, the critical current density of YBCO/CeO2 composite film is much lower than that of the pure YBCO film at all the applied magnetic fields due to the chemical reaction between YBCO and CeO2. Therefore, it can be concluded that the flux-pinning performance of YBCO film can be improved by the lattice distortions within YBCO matrix as long as the metal oxide microarrays cannot react with YBCO films.

中文翻译：

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增强溶液衍生的 YBCO-BaZrO3 复合薄膜的超导性能

摘要 采用无氟溶胶-凝胶法结合新型光敏溶胶-凝胶光刻技术，在LaAlO3（LAO）衬底上制备了具有增强助焊剂钉扎性能的YBa2Cu3O7-δ/BaZrO3（YBCO/BZO）复合薄膜。由于 YBCO/LAO 和 YBCO/BZO 界面之间的晶格失配差异，高密度堆垛层错被成功引入 YBCO 基体中，这已通过 XRD 和 HRTEM 分析得到证实。磁化测量结果表明，YBCO/BZO复合薄膜比纯YBCO薄膜具有更强的载流能力，尤其是在外加磁场下。然而，由于 YBCO 和 CeO2 之间的化学反应，YBCO/CeO2 复合薄膜的临界电流密度在所有外加磁场下都远低于纯 YBCO 薄膜。所以，