Transport critical current density of melt-processed (QMG) YBa2Cu3Ox bulk superconductors

K. Kimura, M. Morita, M. Tanaka, S. Takebayashi, L. Trouilleux, K. Miyamoto, M. Hashimoto, K. Watanabe, S. Awaji, N. Kobayashi

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Transport critical currents of melt-processed (QMG) YBa2Cu3Ox bulk superconductors were measured by a d.c. four probe method. The QMC bulk specimens have high Jc characteristics of ≈ 1 × 104 A cm-2 at 5 T for the magnetic field parallel to a-b plane. The angular dependence of Jc upon the direction of applied magnetic field showed some characteristic features which could not be described by simple flux pinning. This indicates that anisotropic pinning is relatively strong. The pinning caused by the layered structure, twin boundaries and oxygen deficiency, as well as pinning by the Y2BaCuO5 phase, play important roles in determining the Jc of the QMG YBa2Cu3Ox bulk superconductors.

本文言語English
ページ(範囲)506-509
ページ数4
ジャーナルCryogenics
33
5
DOI
出版ステータスPublished - 1993 5

ASJC Scopus subject areas

  • 材料科学(全般)
  • 物理学および天文学(全般)

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