Observations of suppression of static and dynamic disorder in Bi2.15Sr1.85CaCu2O8+d crystals by columnar defects

Stephen Leslie Lee, CM Aegerter, SH Lloyd, EM Forgan, other 8

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Muon spin rotation and small angle neutron scattering measurements have been carried out on Bi2.15Sr1.85CaCu2O8+delta single crystals irradiated with fast heavy ions. The data give substantial evidence that even below the matching field, the positions of the vortices, in a plane perpendicular to the tracks, are not random. Furthermore, the crossover to a glassy vortex arrangement, observed in the pristine material, is moved to higher fields. It is shown that the presence of the columnar defects also strongly suppresses the thermal fluctuations of the vortices in comparison with the pristine material.

Original languageEnglish
Pages (from-to)5209-5012
Number of pages4
JournalPhysical Review Letters
Volume81
Publication statusPublished - 7 Dec 1998

Keywords

  • MUON SPIN ROTATION
  • DIFFERENT OXYGEN STOICHIOMETRY
  • FIELD PHASE-DIAGRAM
  • LAYERED SUPERCONDUCTORS
  • DIMENSIONAL CROSSOVER
  • SINGLE-CRYSTALS
  • VORTEX-LATTICE
  • FLUCTUATIONS
  • VORTICES
  • LINE

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