Influence of the flux creep on the irreversibility line of YBa2Cu3Oy (6.6≤y≤6.9) single crystals

N. Kobayashi, K. Hirano, Y. Minagawa, T. Sasaki, K. Watanabe, S. Awaji, H. Asaoka, H. Takei

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The temperature and angular dependence of the irreversibility field of YBa2Cu3Oy (6.6≤y≤6.9) single crystals have been investigated by magnetic measurements in magnetic fields up to 55kOe. The angular dependence of Hirr is well described by the expression, HirrlnHirr∝1/(cos2θ+γ-2sin2θ) 1 2, which is expected from the flux creep model. The γ value is in good agreement with the effective mass ratio obtained from the angular dependence of the resistive transition.

Original languageEnglish
Pages (from-to)2785-2786
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 4
Publication statusPublished - 1994 Dec

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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