Abstract
YBa2Cu3O7−δ (YBCO)-coated conductors have wide-ranging potential in large-scale applications such as superconducting magnets and superconducting electric cables, but low current carrying capability restrains the practical application of YBCO-coated conductors at high temperatures and high magnetic fields. It is crucial to develop YBCO-coated conductors with high flux pinning capabilities. In this paper, YBa2Cu3−x Fe x O7−δ (x = 0, 0.0005, 0.001, 0.002, 0.005) and YDy x Ba2Cu3O7−δ (x = 0∼0.5) films were prepared on a LaAlO3 (LAO) single crystal substrate via a fluorine-free polymer-assisted metal organic deposition (PA-MOD) method. The effects of elements doping on the properties of YBCO in different positions of the lattice were investigated. The superconducting critical temperature (T c) decreases, and the superconducting transition width broadens with the Fe and Dy doping. However, the critical current densities (J c) improve at 77 K with Fe doping quantities of xless than 0.005 and Dy doping quantities of xless than 0.5. It means that the current carrying capability of a YBCO film can be improved by doping with appropriate amounts of Fe and Dy.
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In this paper, the authors wish to thank the fund for the project support, including the Fundamental Research Funds for the Central Universities (A0920502051411-5), the National Natural Science Foundation of China (51377138 and 51271155), and the National Science and Technology Projects Foundation (2013DFA51050, 2013GB114003-1, 2014AA032701).
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Zhang, H., Zhao, Y., Wang, W.T. et al. The Effects of Elements Doping on the Properties of YBCO Epitaxial Films Prepared by Chemical Solution Deposition. J Supercond Nov Magn 28, 3281–3284 (2015). https://doi.org/10.1007/s10948-015-3201-8
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DOI: https://doi.org/10.1007/s10948-015-3201-8