Triangular to Square Flux Lattice Phase Transition in YBa2Cu3O7

S. P. Brown, D. Charalambous, E. C. Jones, E. M. Forgan, P. G. Kealey, A. Erb, and J. Kohlbrecher
Phys. Rev. Lett. 92, 067004 – Published 10 February 2004

Abstract

We have used the technique of small-angle neutron scattering to observe magnetic flux lines directly in a YBa2Cu3O7 single crystal at fields higher than previously reported. For field directions close to perpendicular to the CuO2 planes, we find that the flux lattice structure changes smoothly from a distorted triangular coordination to nearly perfectly square as the magnetic induction approaches 11 T. The orientation of the square flux lattice is as expected from recent d-wave theories but is 45° from that recently observed in La1.83Sr0.17CuO4+δ.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 21 August 2003

DOI:https://doi.org/10.1103/PhysRevLett.92.067004

©2004 American Physical Society

Authors & Affiliations

S. P. Brown1,*, D. Charalambous1, E. C. Jones1, E. M. Forgan1, P. G. Kealey1, A. Erb2, and J. Kohlbrecher3

  • 1School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
  • 2Walther-Meissner Institut, Garching D-85748, Germany
  • 3Paul Scherrer Institut, Villigen PSI, CH 5232, Switzerland

  • *Electronic address: sp.brown@physics.org

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 92, Iss. 6 — 13 February 2004

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×