Study on relation between AC characteristics and critical current distribution in YBCO tape
作者： O. Tsukamoto , D. Miyagi
DOI: 10.1109/77.828451
关键词: High-temperature superconductivity 、 Eddy current 、 Current (fluid) 、 Cross section (physics) 、 Conductor 、 Current density 、 Condensed matter physics 、 Layer (electronics) 、 Quaternary compound 、 Materials science
摘要: We measured AC transport current loss of a high density YBCO tape conductor. The conductor was made by depositing thin layer /spl sim/1 mu/m thick on LaAlO/sub 3/ single crystal substrate and its critical around 100 A at 0 T 77 K. data deviated from the Norris curves for elliptical strip models. an analytical model to numerically calculate loss. In model, (J/sub c/) distribution in wire cross section is taken into consideration. It shown analysis based that deviation equations due inhomogeneous J/sub c/ tape. investigated subdividing along longitudinal direction. results investigation are compared with deduced analysis. showed frequency dependency, which can be explained assuming has hysteretic eddy-current-like components.
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