Electrical and magnetic properties of conductive Cu-based coated conductors

被引：32

作者：

Aytug, T ^{[1
]}

Paranthaman, M ^{[1
]}

Thompson, JR ^{[1
]}

Goyal, A ^{[1
]}

Rutter, N ^{[1
]}

Zhai, HY ^{[1
]}

Gapud, AA ^{[1
]}

Ijaduola, AO ^{[1
]}

Christen, DK ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 19期

关键词：

D O I：

10.1063/1.1626263

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The development of YBa2Cu3O7-delta (YBCO)-based coated conductors for electric power applications will require electrical and thermal stabilization of the high-temperature superconducting (HTS) coating. In addition, nonmagnetic tape substrates are an important factor in order to reduce the ferromagnetic hysteresis energy loss in ac applications. We report progress toward a conductive buffer layer architecture on biaxially textured nonmagnetic Cu tapes to electrically couple the HTS layer to the underlying metal substrate. A protective Ni overlayer, followed by a single buffer layer of La0.7Sr0.3MnO3, was employed to avoid Cu diffusion and to improve oxidation resistance of the substrate. Property characterizations of YBCO films on short prototype samples revealed self-field critical current density (J(c)) values exceeding 2x10(6) A/cm(2) at 77 K and good electrical connectivity. Magnetic hysteretic loss due to Ni overlayer was also investigated. (C) 2003 American Institute of Physics.

引用

收藏

页码：3963 / 3965

页数：3

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