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

S. Takebayashi, S. I. Yoo, Masato Murakami

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)465-472
Number of pages8
JournalPhysica C: Superconductivity and its Applications
Volume383
Issue number4
DOIs
Publication statusPublished - 2003 Jan 1
Externally publishedYes

Fingerprint

Critical currents
Spatial distribution
Volume fraction
Magnetic properties
Annealing
Oxygen
Microstructure
critical current
spatial distribution
inclusions
magnetic properties
microstructure
annealing
oxygen
Temperature
temperature
Direction compound

Keywords

  • Melt textured
  • Oxygen annealing
  • Spatial variation
  • Y-Ba-Cu-O

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Spatial variation of superconducting properties in a large grain of Y-Ba-Cu-O. / Takebayashi, S.; Yoo, S. I.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 383, No. 4, 01.01.2003, p. 465-472.

Research output: Contribution to journalArticle

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