Preparation of EuBCO Epitaxial and Textured Films by F-Free Polymer-Assisted Chemical Solution Deposition Method

Xin Zhang; Cui Hua Cheng; Wen Tao Wang; Yong Zhang; Yong Zhao

doi:10.4028/www.scientific.net/MSF.745-746.261

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Influence of Electron-Beam Annealing Duration on MgB₂ Film Superconductivity
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HomeMaterials Science ForumMaterials Science Forum Vols. 745-746Preparation of EuBCO Epitaxial and Textured Films...

Preparation of EuBCO Epitaxial and Textured Films by F-Free Polymer-Assisted Chemical Solution Deposition Method

Abstract:

Epitaxial and textured EuBa₂Cu₃O_7-x(EuBCO) superconductive films were prepared via a F-free polymer-assisted chemical solution deposition (PACSD) method on LaAlO₃ (LAO) single crystal substrate in nitrogen atmosphere. Because of the fluorine-free metal organic system, no harmful gas was produced during processing by the PA-CSD method. The film morphorlogy, phase composition, texture and the superconducting critical temperature (Tc) of EuBCO films were investigated by x-ray diffraction (XRD),φ-scan, ω-scan rocking curves, an environmental scanning electron microscope (ESEM) and four-probe method. The J_c value of the EuBCO film in self-field at 77K was measured by using J_c-scan Leipzig system. The results shoed that a denser microstructure and better biaxial texture EuBCO film after a high temperature treatment with a superconducting critical temperature (Tc) of 91K was obtained . The critical current density (Jc) reached 2.4MA/cm²at 77K in the self-field.

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Materials Science Forum (Volumes 745-746)

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261-266

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https://doi.org/10.4028/www.scientific.net/MSF.745-746.261

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February 2013

Authors:

Xin Zhang, Cui Hua Cheng, Wen Tao Wang, Yong Zhang, Yong Zhao

Keywords:

EuBCO, Fluorite-Free PACSD, High Temperature Heat Treatment

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