Effect of holding temperature on microstructures and Jc properties of YBa2Cu3O7−X films fabricated by TFA-MOD method

• We introduced holding temperature during crystallization process to control the size of BaZrO3 particles.
• The YBCO film with small BaZrO3 particles was fabricated successfully by introducing holding temperature.
• It was revealed that the in-field Jc was improved by introducing the holding temperature.

In this study, we investigated the correlation between microstructures and critical current density (Jc) of YBa2Cu3O7−X (YBCO) films with BaZrO3 (BZO) pinning centers by introducing holding temperature during the crystallization process. Smaller BZO particles and higher in-field Jc were found in the YBCO film with holding temperature than the one without. As a result, films with improved microstructures were successfully fabricated by implementation of additional process, holding temperature, and highly in-field Jc were obtained by introducing smaller BZO particles as artificial pinning centers.