Anisotropy and lorentz-force dependences of critical current density in C-axis-oriented YBa2Cu3O7-δ thin film

Tomoya Horide, Kaname Matsumoto, Yutaka Yoshida, Masashi Mukaida, Ataru Ichinose, Shigeru Horii, Kozo Osamura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The magnetic field angular dependence of Jc(θ) for a c-axis-oriented YBa2Cu3O7-δ (YBCO) thin film was measured using both constant and variable Lorentz force configurations. When the field was tilted from the c-axis within ±30°, J c(θ) was independent of the intensity of the Lorentz force. This demonstrates that the vortices have bent segments trapped by pinning centers that extend parallel to the c-axis, and Jc(θ) is limited by the depinning of these segments. The effect on Jc(θ) of the two types of pinning centers, i.e., either parallel to the c-axis or to the ab plane, should be considered when the field is tilted from the ab plane within ±30°.

Original languageEnglish
Pages (from-to)L111-L113
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume44
Issue number1-7
DOIs
Publication statusPublished - May 3 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

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