Vortex phase transition and correlation in partially Au-ion irradiated YBa2Cu3O7 films

T. Nojima, J. Z. Liu, T. Nishizaki, S. Okayasu, N. Kobayashi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Multiterminal transport measurements have been made on YBa2Cu3O7 films with irradiation patterns, which were prepared by partially masked irradiation with 200 MeV Au ions. Two kinds of transitions, which correspond to the vortex glass transition and the Bose glass transition, are observed at Tg and T′g for the unirradiated part and the irradiated part, respectively. In temperature regions with Tg < T < T′g, where flux flow in unirradiated part is confined between the Bose glass solids, we find the apparent increase of the glass exponents in the resistive transition. The phenomena can be ascribed to diverging development of the vortex shear viscosity.

Original languageEnglish
Pages (from-to)469-472
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume357-360
DOIs
Publication statusPublished - 2001 Aug

Keywords

  • Bose glass transition
  • Columnar defects
  • Superconducting films
  • Vortex dynamics
  • Vortex glass transition
  • YBaCuO

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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