Minimization of BaHfO3 Flux Pinning Centers in YBa2Cu3Oy Films by Metal Organic Deposition Process

作者：Teranishi Ryo^*; Otaguro Kenya; Horita Hiroshi; Yamada Kazuhiro; Kaneko Kenji; Izumi Teruo; Awaji Satoshi

来源：IEEE Transactions on Applied Superconductivity, 2016, 26(3): 8001403.

DOI：10.1109/TASC.2016.2549863

• Coated conductors
• flux pinning centers
• nanoparticles
• TFA-MOD process
• YBCO film

YBCO films with BaHfO3 (BHO) nanoparticles were fabricated by a metal organic deposition method using trifluoroacetate (TFA) solution with Hf salt. The diameter of BHO nanoparticles was minimized by the additional holding temperature during the crystallization process. Critical current density (J(C)) in magnetic fields of YBCO films with BHO nanoparticles was higher than that of the film with BaZrO3 (BZO). Accordingly, it was revealed that BHO nanoparticles act as very effective artificial pinning centers.

• 出版日期2016-4