Estimate of attainable critical current density in superconducting yba2cu3o7-ै

Teruo Matsushita, Masataka Iwakuma, Yasuo Sudo, Baorong Ni, Takanobu Kisu, Kazuo Funaki, Masakatsu Takeo, Kaoru Yamafuji

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Attainable critical current density in oxide superconductor YBa2Cu3O7-ै is estimated by an ordinary analyzing method in flux pinning phenomena with superconducting parameters obtained from a magnetization measurement. The pinning mechanisms considered here are an anisotropy in the upper critical field and an electron scattering effect for grain boundaries and twinning planes. While the elementary pinning force of these planar defects is small due to a small thermodynamic critical field at 77 K, a critical current density comparable to that of Nb-Ti at 4.2 K is expected to be attained by increasing the pin concentration.

Original languageEnglish
Pages (from-to)1524-1526
Number of pages3
JournalJapanese Journal of Applied Physics
Volume26
Issue number9A
DOIs
Publication statusPublished - Sep 1987

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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