Preparation of YBCO-BYTO and YBCO-BZO nanostructured superconducting films by chemical method

[摘要] YBCO-BYTO6% and YBCO-BZO10% YBa2Cu3O7-d-Ba2YTaO66% (YBCO-BYTO6%) and YBa2Cu3O7--BaZrO310% (YBCO-BZO 10%) nanostructured films were grown by the Chemical Solution Deposition method, and compared with YBCO pure films. Films were deposited on YSZ substrates, with Ce0.9Zr0.1O2and Ce0.6Zr0.4O2buffer layers. They were characterized by GADDS X-ray diffraction, scanning electron microscopy (SEM) and inductive (SQUID) measurements of the critical temperature (Tc) and critical current density (Jc). It was found that YBCO-BZO10% films presented better superconducting properties (Tc=89.2K and Jc=1.3MA/cm2), probably due to an enhanced pinning force, originated by BZO nanoparticles. Additionally, it was found that these films have lower reactivity with the buffer layer.

[发布机构] Universidad Nacional de Colombia, Bogotá D.C., Colombia^1;Instituto de Ciencia de Materiales, Consejo Superior de Investigaciones Científicas, Bellaterra, Cataluña, Spain^2

[效力级别] 化学

[关键词] Chemical method;Chemical solution deposition method;Critical temperatures;Enhanced pinning force;Measurements of;Nano-structured;Nanostructured Films;Superconducting properties