In this work, sodium niobate (NaNbO₃) nanorods (NR) – YBCO superconductor composites with different wt% (0–2%) of NaNbO₃ were prepared via a two-step process of hydrothermal and solid-state reaction, and its structural, electrical, and magnetic characterizations were carried out. XRD studies revealed that the orthorhombicity of YBCO is preserved in all nanocomposite samples. The superconducting transition temperature decreases from 92 K to 90.5 K when the addition of NaNbO₃ was increased to 2 wt%. Magnetization studies revealed a significant increase of critical current (J_c) and pinning force (F_p) in the NaNbO₃ (NR) added YBCO sample which has been attributed to the creation of artificial pinning centers due to the presence of NaNbO₃ NR. For the 0.5 wt% nanorods added sample, the enhancement in J_c and F_p was maximum. Temperature and field dependence of J_c were carried out to probe the nature of pinning in the nanocomposite superconductors.

在这项工作中，通过水热和固相反应两步法制备了铌酸钠 (NaNbO ₃ ) 纳米棒 (NR) - YBCO 超导体复合材料，其中含有不同重量百分比 (0-2%) 的 NaNbO ₃进行了电学和磁学表征。XRD 研究表明，YBCO 的正交性在所有纳米复合材料样品中均得以保留。当 NaNbO ₃的添加量增加到 2 wt%时，超导转变温度从 92 K 降低到 90.5 K。磁化研究表明，NaNbO _{3 中}的临界电流 ( J _c ) 和钉扎力 ( F _p )显着增加。(NR) 添加了 YBCO 样品，这归因于由于 NaNbO ₃ NR的存在而产生的人工钉扎中心。对于添加 0.5 wt% 纳米棒的样品，J _c和F _p的增强最大。进行J _{c 的}温度和场依赖性以探测纳米复合超导体中钉扎的性质。