Enhanced flux pinning of solution-derived YBa2Cu3O7-x nanocomposite films with novel ultra-small BaMnO3 nanocrystals
Enhanced flux pinning of solution-derived YBa2Cu3O7-x nanocomposite films with novel ultra-small BaMnO3 nanocrystals
复制标题
新型超小 BaMnO3 纳米晶体增强溶液衍生 YBa2Cu3O7-x 纳米复合薄膜的通量钉扎
DOI：
10.1088/1361-6668/aaf201
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发表时间：
2019
影响因子：
3.6
通讯作者：
Gu Hongwei
中科院分区：
文献类型：
--
作者：
Dong Zebin;Ding Fazhu;Zhang Jiliang;Zhang Huiliang;Shang Hongjing;Huang Daxing;Xu Wenjuan;Zhang He;Zhang Hua;Gu Hongwei
对高性价比涂层导体的需求引发了通过低成本和高可扩展性路线寻找有效的人工钉扎中心。采用低氟金属有机物沉积法制备了掺杂锰诱导的BaMnO3纳米颗粒的YBa2Cu3O7 − x（YBCO）纳米复合薄膜。采用中温快速加热的方法减小了BaMnO3纳米颗粒的尺寸，提高了YBCO薄膜的质量。在高质量的YBCO薄膜中嵌入了非常小的纳米颗粒（平均为3±1 nm），发现了一种增强的临界电流密度和钉扎力。
The demand for coated conductors with high cost performance has triggered the search for effective artificial pinning centers by the low cost and high-scalability route. In this work, YBa 2 Cu 3 O 7− x (YBCO) nanocomposite films with BaMnO 3 nanosized particles induced by manganese (Mn) addition were prepared by low-fluorine metal-organic deposition. A strategy of rapid heating during the medium-temperature stage was adopted to reduce the size of the BaMnO 3 nanoparticles and improve the quality of the YBCO films. An enhanced critical current density and pinning force were found in the high-quality YBCO film embedded with extraordinarily small nanoparticles (average 3±1 nm).