Polar Kerr-Effect Measurements of the High-Temperature<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>YBa</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Cu</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mrow><mml:mn>6</mml:mn><mml:mo>+</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:math>Superconductor: Evidence for Broken Symmetry near the Pseudogap Temperature
Jing Xia(Stanford University), Elizabeth Schemm(Stanford University), G. Deutscher(Tel Aviv University), Steven A. Kivelson(Stanford University), D. A. Bonn(University of British Columbia), W. N. Hardy(University of British Columbia), Ruixing Liang(University of British Columbia), Wolter Siemons(University of Twente), Gertjan Koster(University of Twente), M. M. Fejer(Stanford University), A. Kapitulnik(Stanford University)
Cited by 384Open Access
Abstract
The polar Kerr effect in the high-T_(c) superconductor YBa2Cu3O6+x was measured at zero magnetic field with high precision using a cyogenic Sagnac fiber interferometer. We observed nonzero Kerr rotations of order approximately 1 microrad appearing near the pseudogap temperature T(*) and marking what appears to be a true phase transition. Anomalous magnetic behavior in magnetic-field training of the effect suggests that time reversal symmetry is already broken above room temperature.
Related Papers
No related papers found
Powered by citation graph analysis