Fe doped epitaxial YBCO films prepared by chemical solution deposition

Zhang Hong; Wang Wentao; Zhao Yong

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Fe doped epitaxial YBCO films prepared by chemical solution deposition

Zhang Hong 1 #,Wang Wentao 2,Zhao Yong 2 *

1.Superconductivity R&D Center, Southwest Jiaotong University, ChengDu 610031

2.Superconductivity R&D Center, Southweat Jiaotong University, Chengdu 610031

*Correspondence author

#Submitted by

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Funding: Doctoral Program Specialized Research Foundation of Higher Education （No.No. 200806131034, 200806130023）

Opened online:16 January 2012

Accepted by: none

Citation: Zhang Hong,Wang Wentao,Zhao Yong.Fe doped epitaxial YBCO films prepared by chemical solution deposition[OL]. [16 January 2012] http://en.paper.edu.cn/en_releasepaper/content/4460017

YBCO coated conductor has wide prospect in large scale application. But low current carrying capability restrain the practical application of YBCO coated conductor at high temperatures and high magnetic fields. Therefor, It is crucial for the preparation of theYBCO coated conductor with high critical current density. In this paper, epitaxial, dense, smooth and crack-free Fe doped YBCO films were prepared on LaAlO3 (LAO) single crystal substrate via a fluorine-free polymer-assisted metal organic deposition (PA-MOD) method. The effects of Fe doping on microstructure and superconducting character of YBCO films were investigated. The critical temperature for superconducting of the Fe doped YBCO film degrades slightly. However, In-field critical current density of YBCO films improves with this dilute Fe doping, except the doping quantity x = 0.005 compare to the pure YBCO film. Therefore, the current carring capability of YBCO film can improve through doping appropriate Fe in to the YBCO. It means that Fe doping in YBCO film may be a feasible way to prepare high performance conted conductor.

Keywords:superconductivity physics; YBCO films; doped

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