We analyze the Raman-scattering response in a two-dimensional d(x2-y2)-wave superconductor and point out a strong suppression of relative intensity in the screened A(1g) channel compared to the B-1g channel for a generic tight-binding model. This is in contrast with the observed behavior in high-T-c superconductors.
Wenger, F., & Käll, M. (1997). Screened Raman response in two-dimensional d(x2-y2)-wave superconductors: Relative intensities in different symmetry channels. Physical Review B, 55(1), 97-100. https://doi.org/10.1103/PhysRevB.55.97