Irradiation effects of flux pinning and Jc in high temperature superconductors

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

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We have introduced neutron and electron irradiation defects in bulk YBCO melt-textured materials. The defects and their effect on the critical current density (Jc) have been examined. The enhancement of Jc is found to be heavily dependent on the type and energy of the beam as well as on the direction of the beam with respect to the crystal. Two types of defects have been identified in neutron irradiated YBCO by positron annihilation experiments. The large defects (∼ 20 Å) correlate with the enhancement of Jc and are 103 times more effective in flux pinning than point defects.

Original languageEnglish
Pages (from-to)2311-2312
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 4
Publication statusPublished - 1991 Dec 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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