Improvement of Surface Morphology and Critical Current Density of YDy0.2Ba2Cu3.3O7−δ Thick Films by Inserted RE2O3 Thin Films

被引：0

作者：

Q. Fang

M. Y. Li

M. J. Sun

X. F. Hu

Z. Y. Liu

Y. M. Lu

Y. Q. Guo

C. Y. Bai

Y. B. Zhang

H. M. Zhu

C. B. Cai

机构：

[1] Shanghai University,Shanghai Key Laboratory of High Temperature Superconductors, Physics Department

[2] Shanghai Creative Superconductor Technologies Co. Ltd.,undefined

来源：

Journal of Superconductivity and Novel Magnetism | 2017年 / 30卷

关键词：

YDyBaCuO; RE; O; interlayer; Thick film; Low-fluorine metal organic deposition;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Various artificial multilayers consisting of YDy0.2 Ba2Cu3O7−ε/RE2O3/YDy0.2Ba2Cu3O7−ε films (RE = Y, Gd, Eu, etc.) about 1 μm in a sandwich-type structure are fabricated on oxide-buffered Hastelloy substrates using low-fluorine metalorganic deposition (MOD) method. Superconducting and microscopic performances are studied on composite YDyBaCuO multilayer films with and without intercalated Y2O3, Gd2O3, and Eu2O3 ultrathin films. X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) are used to investigate growth orientation and surface morphology, revealing that multiple superconducting YDyBaCuO thin films separated by an ultrathin RE2O3 interlayer have better c-axis orientation, better in-plane and out-plane textures, as well as superior surface morphology. Using this interlayer technology, a significant enhancement of critical current density (Jc) both in self-field and under applied magnetic field is obtained.

引用

页码：1713 / 1717

页数：4

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