Tailoring surface roughness of LaMnO3 buffer layers for YBCO-coated conductors
来源期刊：Rare Metals2015年第12期
论文作者：Chao Yang Yuan-Ying He Jun-Wei Chu Yan Xue Fei Zhang Wang Hui Bo-Wan Tao Jie Xiong
文章页码：859 - 863
摘 要：LaMnO3（LMO） cap layers with different surface roughness were prepared on epi-MgO/ion-beam-assisted deposition（IBAD） MgO/solution deposition planarized（SDP） Y2O3/Hastelloy tape.The effects of the surface roughness of LMO on the crystallization,texture and superconducting properties of YBa2Cu3O7-δ（YBCO）films were systematically investigated.The crystallization and epitaxial texture of resulting YBCO film are significantly improved with the surface roughness of LMO decreasing from 7.0 to 1.3 nm.High-performance YBCOcoated conductors could be achieved if surface roughness of LMO cap layer is well controlled.
Chao Yang1，Yuan-Ying He1，Jun-Wei Chu1，Yan Xue1，Fei Zhang1，Wang Hui2，Bo-Wan Tao1，Jie Xiong1
1. State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China2. Applied Research Laboratory of Superconduction and New Material, Institute of Electrical Engineering, Chinese Academy of Sciences
摘 要：LaMnO3（LMO） cap layers with different surface roughness were prepared on epi-MgO/ion-beam-assisted deposition（IBAD） MgO/solution deposition planarized（SDP） Y2O3/Hastelloy tape.The effects of the surface roughness of LMO on the crystallization,texture and superconducting properties of YBa2Cu3O7-δ（YBCO）films were systematically investigated.The crystallization and epitaxial texture of resulting YBCO film are significantly improved with the surface roughness of LMO decreasing from 7.0 to 1.3 nm.High-performance YBCOcoated conductors could be achieved if surface roughness of LMO cap layer is well controlled.
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