Direct growth of LaMnO3 cap buffer layers on ion-beam-assisted deposition MgO for simplified template-based YBa2Cu3O7-δ-coated conductors

被引：14
|
作者：
Polat, O. [1 ,2 ]
Aytug, T. [1 ]
Paranthaman, M. [1 ]
Kim, K. [1 ]
Zhang, Y. [1 ]
Thompson, J. R. [1 ,2 ]
Christen, D. K. [1 ]
Xiong, X. [3 ]
Selvamanickam, V. [3 ]
机构：
[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[2] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
[3] SuperPower Inc, Schenectady, NY 12304 USA
来源：
JOURNAL OF MATERIALS RESEARCH | 2008年 / 23卷 / 11期
基金：
美国能源部;
关键词：
D O I：
10.1557/JMR.2008.0362
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Simplification of the ion-beam-assisted deposition (IBAD) buffer architecture is one of the key issues for reduced manufacturing cost of second-generation superconducting wire production. In this work, we studied various radio frequency magnetron sputter deposition conditions for epitaxial growth of LaMnO3 (LMO) layers, with varying thicknesses, directly on IBAD-MgO without homo-epitaxial MgO layers. Performance of the simplified LMO/IBAD-MgO samples was qualified by pulsed-laser-deposited 1-mu m-thick YBa2Cu3O7-delta (YBCO) coatings. Detailed property characterizations revealed that though the growth temperature has a Substantial effect on the texture of LMO layers, neither LMO thickness nor different sputter gas compositions had a significant effect on the performance of YBCO films. The superconducting properties of YBCO on LMO/IBAD-MgO are found to be similar to those obtained on ternplates having homo-epitaxial MgO layers. The present results underscore the strong potential of LMO as a single cap layer directly on IBAD-MgO for the development of a simplified IBAD architecture.
引用
收藏
页码：3021 / 3028
页数：8
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