Angular dependence of the disorder crossover in the vortex lattice of Bi2Ba2CaCu2O8+d by Muon-spin rotation and torque magnetometry

CM Aegerter, J Hofer, IM Savi'c, H Keller, Stephen Leslie Lee, CLl Ager, EM Forgan

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21 Citations (Scopus)

Abstract

Using the techniques of muon spin rotation and torque magnetometry, we investigate the crossover field B-cr in Bi2.15Sr1.85Ca1Cu2O8+delta at which the vortex lattice becomes disordered along the field direction. It is found that B-cr scales as the projection of the applied field along the perpendicular to the superconducting planes. This has the implication that a field large enough to give a disordered lattice when applied perpendicular to the planes, can give a well-ordered vortex-line lattice for angles of the field to the c axis greater than a critical value.

Original languageEnglish
Pages (from-to)1253
Number of pages1253
JournalPhysical Review. B, Condensed matter and materials physics
Volume57
Publication statusPublished - 1 Jan 1998

Keywords

  • HIGH-TC SUPERCONDUCTORS
  • DIMENSIONAL CROSSOVER
  • THERMAL FLUCTUATIONS
  • II SUPERCONDUCTORS
  • PHASE-TRANSITIONS
  • SINGLE-CRYSTALS
  • STATE
  • BI2SR2CACU2O8
  • RELAXATION
  • DIAGRAM

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