La0.7Sr0.3MnO3:: A single, conductive-oxide buffer layer for the development of YBa2Cu3O7-δ coated conductors

被引：47

作者：

Aytug, T ^{[1
]}

Paranthaman, M ^{[1
]}

Kang, BW ^{[1
]}

Sathyamurthy, S ^{[1
]}

Goyal, A ^{[1
]}

Christen, DK ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 14期

关键词：

D O I：

10.1063/1.1405424

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Coated conductor applications in power technologies require stabilization of the high-temperature superconducting (HTS) layers against thermal runaway. Conductive La0.7Sr0.3MnO3 (LSMO) has been epitaxially grown on biaxially textured Ni substrates as a single buffer layer. The subsequent epitaxial growth of YBa2Cu3O7-delta (YBCO) coatings by pulsed laser deposition yielded self-field critical current densities (J(c)) of 0.5x10(6) A/cm(2) at 77 K, and provided good electrical connectivity over the entire structure (HTS+conductive-buffer+metal substrate). Property characterizations of YBCO/LSMO/Ni architecture revealed excellent crystallographic and morphological properties. These results have demonstrated that LSMO, used as a single, conductive buffer layer, may offer potential for use in fully stabilized YBCO coated conductors. (C) 2001 American Institute of Physics.

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页码：2205 / 2207

页数：3

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