A Structural Optimization of Ferrite/YBCO Bilayers

作者: Mika Malmivirta , Jaakko Jyrinki , Hannu Huhtinen , Alexey V. Pan , Sergey Rubanov

DOI: 10.1109/TASC.2016.2643445

关键词:

摘要: Magnetic particles can be used to take advantage of both defect and magnetic pinning in high-temperature superconductors. We combined layers ferrite+cerium oxide with YBCO see their effect on the structure flux pinning. The deposition temperature ferrite greatly affects its also saturation magnetization. Combined YBCO, layer distorts although, for example, critical remains rather unchanged. According structural results achieved here, is best positioned top YBCO. This way, an improvement J c (B) seen all field range, also, a clear accommodation was measured. However, it does not play huge role whether CoFe 2 O 4 , NiFe or ZnFe mixed CeO 2 .

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