Enhanced Vortex Pinning in YBCO Coated Conductors With BZO Nanoparticles From Chemical Solution Deposition
We present our latest results on the growth of chemical solution deposited YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> - BaZrO<sub>3</sub> nanocomposites on metallic substrates. All chemical <sup>TFA</sup>YBCO-BZO/<sup>MOD</sup>CZO/<sup>ABAD</sup>YSZ/SS tapes with J<sub>c</sub>(77K,sf) = 1.7 MA/cm<sup>2</sup> have been achieved with weaker field dependence of J<sub>c</sub> than that of standard <sup>TFA</sup>YBCO tapes. Angular resolved measurements show isotropic enhancement of vortex pinning due to the presence of randomly oriented BZO nanoparticles in the YBCO matrix. Chemical routes are thus a promising way to efficiently increase vortex pinning in coated conductors and improve their capabilities for high field applications.