YBa 2 Cu 3 O 7–x (YBCO) films grown by metal-organic decomposition (MOD) are promising candidates for the production of high performance high temperature superconductors (HTS) tapes. Moreover, artificial pinning centers (APCs) introduction proved to be a powerful tool for the improvement of transport properties in YBCO films. Along with the widely employed pinning strategies, such as the introduction of secondary phases in the YBCO matrix, a less studied approach is the nanostructuring of the YBCO substrate, in order to hinder its growth and to obtain a highly defective superconductive layer. In this work, oxide nanostructures were deposited on crystalline substrates via polymer assisted deposition (PAD), a low cost, highly versatile technique, so as to create nanoparticles that could interfere with epitaxial growth of chemical YBCO films. Preliminary analyses of the superconducting films grown on BaZrO 3 (BZO) and ZrO2 (ZO) nanostructures s...

中文翻译：

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纳米结构模板，用于增强YBa 2 Cu 3 O 7–x膜中的临界电流密度

通过金属有机分解（MOD）生长的YBa 2 Cu 3 O 7–x（YBCO）薄膜有望用于生产高性能高温超导体（HTS）胶带。此外，事实证明，引入人工钉扎中心（APC）是改善YBCO薄膜传输性能的有力工具。伴随着广泛采用的钉扎策略（例如在YBCO基质中引入次级相），较少研究的方法是YBCO基材的纳米结构化，以阻止其生长并获得高度缺陷的超导层。在这项工作中，氧化物纳米结构通过聚合物辅助沉积（PAD）（一种低成本，高度通用的技术）沉积在晶体基板上，从而创建了可以干扰化学YBCO薄膜外延生长的纳米颗粒。