Strong flux pinning enhancement in YBa2Cu3O7-x films by embedded BaZrO3 and BaTiO3 nanoparticles |
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| Authors: | Ding Fa-Zhu Gu Hong-Wei Zhang Teng Wang Hong-Yan Qu Fei Qiu Qing-Quan Dai Shao-Tao Peng Xing-Yu |
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| Affiliation: | Key Laboratory of Applied Superconductivity, Chinese Academy of Sciences, Beijing 1 O0190, China Institute of Electrical Engineering, Chinese Academy of Sciences, Beifing 100190, China |
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| Abstract: | YBa2Cu3O7-x (YBCO) films with embedded BaZrO3 and BaTiO3 nanoparticles were fabricated by metalorganic deposition using trifluoroacetates (TFA-MOD). Both X-ray diffraction and transmission electron microscopy revealed that these BaZrO3 and BaTiO3 nanoparticles had random orientations and were distributed stochastically in the YBCO matrix. The unique combined microstructure enhances the critical current density (Jc) of the BaZrO3/BaTiO3 doped-YBCO films, while keeping the critical transition temperature (Tc) close to that in the pure YBCO films. These results indicate that BaZrO3 and BaTiO3 nanoparticles provide strong flux pinning in YBCO films. |
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| Keywords: | BaZrO3 and BaTiO3 nanoparticles flux pinning metalorganic deposition using trifluoroacetates |
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