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ALTERNATING CURRENT SUSCEPTIBILITY STUDIES OF Y-Ba-Cu-O (123) BULK MATERIAL PREPARED BY MELT-TEXTURED GROWTH METHOD

CHEN XIANG-AI ZHOU XIAN-YI CAO LIE-ZHAO ZHANG QI-RUI WANG SHUN-XI WANG YU-GUI YUAN SONG-LIU

ALTERNATING CURRENT SUSCEPTIBILITY STUDIES OF Y-Ba-Cu-O (123) BULK MATERIAL PREPARED BY MELT-TEXTURED GROWTH METHOD

CHEN XIANG-AI, ZHOU XIAN-YI, CAO LIE-ZHAO, ZHANG QI-RUI, WANG SHUN-XI, WANG YU-GUI, YUAN SONG-LIU
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  • Received Date:  09 March 1991
  • Accepted Date:  18 April 1991
  • Published Online:  05 January 1992

ALTERNATING CURRENT SUSCEPTIBILITY STUDIES OF Y-Ba-Cu-O (123) BULK MATERIAL PREPARED BY MELT-TEXTURED GROWTH METHOD

  • 1. (1)中国科学技术大学物理系,合肥,230026; (2)中国科学技术大学物理系,合肥,230026;浙江大学物理系,杭州,310027; (3)中国科学院等离子体物理研究所,合肥,230031

Abstract: The a.c. susceptibility of Y-Ba-Cu-O(123) bulk material prepared by melt-textured growth (MTG) method was studied and compared with that of sintered sample in this paper. The results show that there are two peaks in the imaginary part corresponding to the grains and grain boundaries in the sintered sample, but only one peak is observed in that of MTG sample of high quality. As for that of MTG sample of worse quality, also two peaks are observed, but they correspond to grains with different growth direction. No frequency effect is observed in both the sintered sample and the MTG sample, showing that the loss is related to flux motion.

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