Spatial variation of superconducting properties in a large grain of Y-Ba-Cu-O

S. Takebayashi, S. I. Yoo, M. Murakami

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We report positional dependence of superconducting properties in a Y-Ba-Cu-O single grain fabricated with a top seeded melt growth technique. It is found that the distributions of the second phase of Y2BaCuO5 (Y211) inclusions and the magnetic properties vary with position in a large sample. The peak effect is observed in the region where the volume fraction of the Y211 particles is low. The optimum oxygen-annealing temperature for achieving high critical current is also dependent on the position in a large bulk. The regional distributions of the microstructure and the properties are not arbitrarily scattered but reasonably depend on the spatial distributions of growth rate and growth direction in a large grain.

本文言語English
ページ(範囲)465-472
ページ数8
ジャーナルPhysica C: Superconductivity and its applications
383
4
DOI
出版ステータスPublished - 2003 1月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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