Critical Current Anisotropy of Zr Doped MOCVD Coated Conductor in Magnetic Fields up to 8T

The critical current angular distributions in the magnetic field range from 0 up to 8 T have been measured for Zr doped MOCVD (metalorganic chemical vapor deposition) tape produced by Super Power Inc. The vortex path model was used to fit these distributions to specify a tilted peak near c-axis that corresponds to the presence of BaZrO3 columnar defects in the tape. The orientation of such defects was found to be 10.3 o with respect to the c-axis direction. Peak in the ab direction was observed in the whole field range and it could be interpreted as pinning on spacer layers between CuO planes. The appearance of gauss distribution was found in high fields that confirms chosen model.