2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/142245Comment on "High Resolution Polar Effect Measurements of Sr2RuO4: Evidence for Broken Time-Reversal Symmetry in the Superconducting State" by J. Xia et al., Phys. Rev. Lett. 97, 167002 (2006).The factor of index of refraction was corrected as N=(n-1)n(n+1)=24 with index of refraction n=3. Consequently, numerical values of the Kerr angles were corrected as 44nrad and 38nrad for the non-local and local limits, respectivelySuperconductivitytext