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arXiv · 0801.2716

Absence of time reversal symmetry breaking in La_{2-x}Sr_{x}CuO_{4}

G. J. MacDougall·A. A. Aczel·J. P. Carlo·T. Ito·J. Rodriguez·P. L. Russo·Y. J. Uemura·S. Wakimoto·G. M. Luke
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Abstract

We have performed zero-field muon spin rotation measurements on single crystals of La_{2-x}Sr_{x}CuO_{4} to search for spontaneous currents in the pseudo-gap 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 pseudo-gap. Comparison between experimental limits and proposed circulating current states effectively eliminates the possibility that such states exist in this family of materials.

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G. J. MacDougall, A. A. Aczel, J. P. Carlo, T. Ito, J. Rodriguez, P. L. Russo, Y. J. Uemura, S. Wakimoto, G. M. Luke. 2008-07-01. Absence of time reversal symmetry breaking in La_{2-x}Sr_{x}CuO_{4}. https://doi.org/10.1103/physrevlett.101.017001

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