Angular dependence of glass scaling behavior in current-voltage characteristics of CVD YBa2Cu3O7-δ films

T. Nojima, H. Iimura, T. Yamaguchi, Y. Kuwasawa

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

In order to investigate the effect of intrinsic pinning on the glassy state, we have measured current-voltage (I-V) curves of CVD YBa2Cu3O7-δ near the glass transition temperature Tg as a function of the angle θ between magnetic field and c-axis. In the scaling analysis of I-V curves based on the vortex-glass model, it is found that the glass scaling function and the critical exponents are independent of θ, and do not show a remarkable change even at θ=90° (H⊥c). Our result indicates that the periodic plane-like intrinsic pinning is not so effective near Tg and vortices are pinned in random point-like disorder for all field directions.

Original languageEnglish
Pages (from-to)107-112
Number of pages6
JournalPhysica C: Superconductivity and its applications
Volume233
Issue number1-2
DOIs
Publication statusPublished - 1994 Nov 10
Externally publishedYes

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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