Observation of an hexatic vortex glass in flux lattices of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+δ

D. J. Bishop, P. L. Gammel, C. A. Murray, D. B. Mitzi, A. Kapitulnik

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We report observation of hexatic order in Abrikosov flux lattices in very clean crystals of the high-Tc superconductor Bi2.1Sr1.9Ca0.9Cu2O8+δ (BSCCO). Our experiments consist of in situ magnetic decoration of the flux lattice at 4.2 K. Analysis of the decoration images shows that the positional order decays exponentially with a correlation length of a few lattice constants while the orientational order persists for hundreds of lattice constants and decays algebraically with an exponent η6 = 0.6 ± 0.01. Our results confirm recent theoretical speculation that the positional order should be far more sensitive to disorder than the orientational order and that the low-temperature ordered phase of the flux lines in these systems might be an hexatic glass.

Original languageEnglish (US)
Pages (from-to)72-79
Number of pages8
JournalPhysica B: Physics of Condensed Matter
Issue number1-4
StatePublished - Feb 2 1991
Externally publishedYes

ASJC Scopus subject areas

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


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