Absence of Broken Time-Reversal Symmetry in the Pseudogap State of the High Temperature La2xSrxCuO4 Superconductor from Muon-Spin-Relaxation Measurements

G. J. MacDougall, A. A. Aczel, J. P. Carlo, T. Ito, J. Rodriguez, P. L. Russo, Y. J. Uemura, S. Wakimoto, and G. M. Luke
Phys. Rev. Lett. 101, 017001 – Published 1 July 2008

Abstract

We have performed zero-field muon-spin-relaxation measurements on single crystals of La2xSrxCuO4 to search for spontaneous currents in the pseudogap state. By comparing measurements on materials across the phase diagram, we put strict upper limits on any possible time-reversal symmetry breaking fields that could be associated with the pseudogap. Comparison between experimental limits and the proposed circulating current states effectively eliminates the possibility that such states exist in this family of materials.

  • Figure
  • Figure
  • Figure
  • Received 16 January 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.017001

©2008 American Physical Society

Authors & Affiliations

G. J. MacDougall1, A. A. Aczel1, J. P. Carlo2, T. Ito2, J. Rodriguez1, P. L. Russo2,3, Y. J. Uemura2, S. Wakimoto4, and G. M. Luke1,5

  • 1Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada, L8S-4M1
  • 2Department of Physics, Columbia University, New York, New York 10027, USA
  • 3TRIUMF, Vancouver, British Columbia, Canada, V6T 2A3
  • 4Quantum Beam Science Directorate, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
  • 5Canadian Institute for Advanced Research, Toronto, Ontario, Canada, M5G 1Z8

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 101, Iss. 1 — 4 July 2008

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
×