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

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

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)43-48
Number of pages6
JournalPhysica C: Superconductivity and its applications
Volume296
Issue number1-2
DOIs
Publication statusPublished - 1998 Feb 10
Externally publishedYes

Keywords

  • Critical current
  • Crystal pulling
  • Melt process
  • YBaCuO
  • YBaCuO

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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