Abstract
In order to enhance the Jc characteristics under the magnetic fields, we prepared Y1-xRExBa2Cu3Oy coated conductors (CCs) with artificial pinning centers by using the starting solution containing Zr-salt, where RE is Gd or Sm, in the trifluoroacetates-metal organic deposition. From microstructure observation, BaZrO3 (BZO) nanoparticles were uniformly dispersed in these films. High Jc in the magnetic fields and significant enhancement of Jc for all applied magnetic field angles were achieved. Especially, YGdBCO+BZO CCs showed the highest self-fields Jc values (Jcsf) of 4 MA/cm2 and its minimum value of 0.64 MA/cm2 at 77 K and 1 T.