Disorder and flux pinning in superconducting pnictide single crystals

C. J. Van Der Beek, G. Rizza, M. Konczykowski, P. Fertey, I. Monnet, R. Okazaki, T. Kato, K. Hashimoto, M. Shimozawa, H. Shishido, M. Yamashita, M. Ishikado, H. Kito, A. Iyo, H. Eisaki, S. Shamoto, T. Shibauchi, Y. Matsuda

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Crystalline disorder in the pnictide superconductor PrFeAsO1-y is studied using magneto-optical visualisation of flux penetration, Transmission Electron Microscopy, and X-ray diffraction using synchrotron radiation. Critical state-like flux distributions and the magnitude and temperature dependence of the critical current demonstrate bulk vortex pinning by oxygen vacancies at all temperatures.

Original languageEnglish
Pages (from-to)S385-S386
JournalPhysica C: Superconductivity and its applications
Volume470
Issue numberSUPPL.1
DOIs
Publication statusPublished - 2010 Dec

Keywords

  • Crystalline disorder
  • Flux pinning
  • Iron-pnictide superconductors
  • Point defects
  • Superconducting vortices

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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