Tests for Nonreciprocal Optical Effects in High-Temperature Superconductors

  • A. Kapitulnik
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 113)

Abstract

The existance of spontanous polar Kerr effect and Faraday effect in High-Tc films and crystals was tested using a Sagnac interferometer. Observation of these effects would be a strong evidence that the superconductivity in the cuprates is described by a theory that predicts broken time-reversal symmetry. No evidense of either polar Kerr rotation or Faraday effects were found when the data was analyzed for both a spatially fluctuating component (anticipating domains) and an absolute offset. The measurements were done with averaged sensitivity of less than 3μrad.

Keywords

Sugar Magnesia Refraction Coupler Grease 

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Copyright information

© Springer-Verlag Berlin, Heidelberg 1993

Authors and Affiliations

  • A. Kapitulnik
    • 1
  1. 1.Department of Applied PhysicsStanford UniversityStanfordUSA

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