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首页> 外文期刊>Journal of Materials Research >Direct growth of LaMnO_3 cap buffer layers on ion-beam-assisted deposition MgO for simplified template-based YBa_2Cu_3O_(7-δ)-coated conductors
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Direct growth of LaMnO_3 cap buffer layers on ion-beam-assisted deposition MgO for simplified template-based YBa_2Cu_3O_(7-δ)-coated conductors

机译：LaMnO_3盖缓冲层在离子束辅助沉积MgO上的直接生长，用于基于模板的简化YBa_2Cu_3O_（7-δ）涂层导体

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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 LaMnO_3 (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-μm-thick YBa_2Cu_3O_(7-δ) (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 templates 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.
机译：简化离子束辅助沉积（IBAD）缓冲结构是降低第二代超导线材制造成本的关键问题之一。在这项工作中，我们研究了直接在IBAD-MgO上无均质外延MgO层的外延生长LaMnO_3（LMO）层的各种射频磁控溅射沉积条件。简化的LMO / IBAD-MgO样品的性能通过脉冲激光沉积的1-μm厚的YBa_2Cu_3O_（7-δ）（YBCO）涂层来验证。详细的特性表征表明，尽管生长温度对LMO层的纹理有很大影响，但LMO厚度和不同的溅射气体成分都不会对YBCO膜的性能产生重大影响。发现YBCO在LMO / IBAD-MgO上的超导性能类似于在具有均质外延MgO层的模板上获得的超导性能。目前的结果突显了改性活生物体作为直接覆盖IBAD-MgO的单盖层的强大潜力，可用于开发简化的IBAD体系结构。

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