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首页> 外文期刊>Physica, C. Superconductivity and its applications >Laser-ablated epitaxial LaAlO3 buffer layers on biaxially textured Ni substrates for superconducting tapes
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Laser-ablated epitaxial LaAlO3 buffer layers on biaxially textured Ni substrates for superconducting tapes

机译：用于超导带的双轴织构Ni衬底上的激光烧蚀外延LaAlO3缓冲层

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摘要

Reported here is a new epitaxial buffer layer configuration on biaxially textured Ni substrates for high temperature superconducting films. The hetero-epitaxial LaAlO3/SrTiO3/CeO2/Ni structure was grown using pulsed laser deposition and is the first demonstrated epitaxial deposition of LaA10(3) on a metal substrate. This buffer configuration was designed specifically for, but is not limited to, the Tl-based superconducting materials for which LaA10(3) has been shown to be the optimum substrate to date. The epitaxy and crystal quality of these layers were investigated using X-ray diffraction including 0/20 and pole figure analysis, which showed that the consistency of the SrTiO3 orientation requires further optimization. Atomic force microscopy measurements revealed initial films that, although epitaxial, have a cracked morphology. The formation mechanism of these cracks and their subsequent elimination are discussed. (C) 1998 Published by Elsevier Science B.V. All rights reserved. [References: 13]
机译：这里报道的是用于高温超导膜的双轴织构镍衬底上的新外延缓冲层配置。使用脉冲激光沉积生长异质外延LaAlO3 / SrTiO3 / CeO2 / Ni结构，这是LaA10（3）在金属基板上的首次外延沉积。此缓冲区配置是专门为但不限于基于La的LaA10（3）迄今为止是最佳衬底的基于T1的超导材料而设计的。使用包括0/20的X射线衍射和极图分析研究了这些层的外延和晶体质量，这表明SrTiO3取向的一致性需要进一步优化。原子力显微镜测量揭示了初始薄膜，尽管外延，但具有破裂的形态。讨论了这些裂纹的形成机理及其后续消除方法。 （C）1998，Elsevier Science B.V.保留所有权利。 [参考：13]

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