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필라멘트 구조로 분리된 YBCO 박막에서 필라멘트 넓이와 간격이 교류손실에 미치는 영향
나동현,박현욱,김맹준,장용식,김지만,이형철,이용호,Na D. H,Park H. W,Kim M. J,Chang Y. S,Kim J. M,Ri H. C,Lee Y. H 한국초전도학회 2004 Progress in superconductivity Vol.6 No.1
To investigate the influence of strip width and inter-strip separation on the ac loss, arrays of parallel strips with different widths and separations were prepared. Studies on the hysteresis-loss characteristics of multifilamentary YBCO films were performed. The local magnetic field due to magnetization currents is measured by a scanning Hall probe microscope. Based on these results a conceptual design for a low loss YBCO coated conductor is suggested.