High critical current density YBa2Cu3O7-δ coatings on LaMnO3-buffered biaxially textured Cu tapes for coated conductor applications

被引：17

作者：

Aytug, T ^{[1
]}

Goyal, A ^{[1
]}

Rutter, N ^{[1
]}

Paranthaman, M ^{[1
]}

Thompson, JR ^{[1
]}

Zhai, HY ^{[1
]}

Christen, DK ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF MATERIALS RESEARCH | 2003年 / 18卷 / 04期

关键词：

D O I：

10.1557/JMR.2003.0120

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High critical current density (high-J(c)) YBa2Cu3O7-delta (YBCO) films were obtained by pulsed laser ablation on biaxially textured Cu substrates. To achieve epitaxy of LaMnO3 (LMO) on Cu, thin epitaxial Ni overlayers were deposited on Cu tapes. The structure comprises the layer sequence of YBCO/LMO/Ni/Cu. For 200-nm-thick YBCO, self-field J(c) values exceeding 1 X 10(6) A/cm(2) at 77 K were achieved. Characterization of these short prototype conductors revealed good structural and morphological properties. Magnetic analysis suggested that hysteretic loss due to the ferromagnetic Ni overlayer is minimal.

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页码：872 / 877

页数：6

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