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- Title
Realizing the Rapid Crystallization of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-δ</sub> Films on LaMnO<sub>3</sub> Buffer Layer by Induction Heating.
- Authors
Shen, Jia-Ji; Liu, Zhi-Yong; Chen, Jing; Zhou, Xing-Hang; Li, Yu-Gang; Cai, Chuan-Bing
- Abstract
YBa2Cu3O7-δ (YBCO) thin films were fabricated rapidly on LaMnO3/MgO/Y2O3/Al2O3/Hastelloy substrate by the self-built induction heating system. The growth rate can be more than 60 nm/s, which is much higher than the traditional Metal Organic Deposition (MOD) method. The effects of heating rate, oxygen partial pressure and growth temperature on the texture and morphology of YBCO films were studied, as well as the analysis of properties. The results of X-Ray Diffraction and Scanning Electron Microscopy demonstrated that rapid heating can effectively reduce the residual of BaCO3 particles. The faster heating rate results in a faster YBCO growth rate, easier c-axis oriented grains growth and denser morphology. Moreover, the growth temperature and atmosphere window of YBCO films were obtained in the rapid heating condition. Meanwhile, the YBCO nucleation and growth models were established. This work realized the rapid crystallization of YBCO films by induction heating system and improved understanding of the nucleation mechanism of YBCO on the flexible metal substrate with buffer layers, which is extremely attractive for the industrialization development of Fluorine Free-MOD superconducting films in the future.
- Subjects
INDUCTION heating; BUFFER layers; SUPERCONDUCTING films; CRYSTALLIZATION; DISCONTINUOUS precipitation; THIN films; COPPER films
- Publication
Journal of Superconductivity & Novel Magnetism, 2022, Vol 35, Issue 11, p3147
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-022-06366-7