Defect size dependence of critical current density enhancement for irradiated YBa2Cu3O7-δ

J. Bechtold, Y. Y. Xue, Z. J. Huang, E. V. Hungerford, P. H. Hor, C. W. Chu, X. K. Maruyama, H. Backe, F. R. Buskirk, S. M. Connors, D. D. Snyder, Y. C. Jean, J. W. Farmer

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4 Citations (Scopus)

Abstract

The effects of 100 MeV electron (to 3.6×1018 cm-2) and fast neutron irradiation (to 4.0 × 1018 cm-2) on the superconducting properties of melt-textured YBa2Cu3O7-σ is studied experimentally. By comparing the critical current enhancement effects normalized to the total atomic displacement damage, it is found that the enhancement depends heavily on the type and energy of radiation and on the beam direction with respect to the crystal. Fast neutron irradiation is more effective than 100 MeV electron irradiation (along the c-axis) in enhancing the critical current, and electron irradiation along the c-axis is more effective than electron irradiation along the a, b-plane. A model based on defect size is proposed to interpret the effects.

Original languageEnglish
Pages (from-to)199-204
Number of pages6
JournalPhysica C: Superconductivity and its applications
Volume191
Issue number1-2
DOIs
Publication statusPublished - 1992 Feb 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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