کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1818746 | 1026034 | 2010 | 5 صفحه PDF | دانلود رایگان |
YBCO films without and with dilute cobalt and zinc doping were prepared on (0 0 l) LaAlO3 substrate by non-fluorine metal organic deposition method. Effects of dilute cobalt and zinc doping on biaxial texture, microstructure and flux-pinning properties of YBCO films were investigated. The surface density and smoothness of the doped YBCO films have been distinctly improved compared with that of the pure film. Dilute cobalt- and zinc-doped YBCO films exhibit significantly enhanced Jc values in the magnetic field. The best result is achieved in the cobalt-doped YBCO film. At 77 K, Jc values of cobalt-doped film are 1.7 and 5.4 times higher than that of pure film in 0.5 T and 1.5 T, respectively. These results strongly suggest that dilute cobalt and zinc doping is a promising way to increase the current carrying capability of YBCO films.
Journal: Physica C: Superconductivity - Volume 470, Issue 20, 1 November 2010, Pages 1261–1265