Comparative study of magnetic properties between melt-textured and single crystalline Y-Ba-Cu-O

M. Watahiki, W. J. Jang, N. Sakai, M. Murakami

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We studied magnetic properties of a melt-textured Y-Ba-Cu-O with Y2BaCuO5 inclusions and a single crystalline YBa2Cu3Oy, grown by a crystal pulling technique by changing oxygen annealing conditions with the emphasis placed on the effect of doping level on flux pinning. Magnetization hysteresis loop measurements at 20 K and 77 K showed that the critical currents of the melt-textured sample were three times as large as those of a single crystal, which confirms the contribution of Y2BaCuO5 to pinning enhancement. In order to enhance flux pinning, it is important to introduce effective pinning centers in the good matrix with sufficiently large oxygen content.

本文言語English
ページ(範囲)43-48
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
296
1-2
DOI
出版ステータスPublished - 1998 2 10
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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