Pair breaking versus symmetry breaking: Origin of the Raman modes in superconducting cuprates

N. Munnikes, B. Muschler, F. Venturini +9

We performed Raman experiments on superconducting $\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{r}}_2(\mathrm{C}{\mathrm{a}}_{1-\mathrm{x}}{\mathrm{Y}}_{\mathrm{x}})\mathrm{C}{\mathrm{u}}_2{\mathrm{O}}_{8+\delta }$ (Bi-2212) and $\mathrm{YB}{\mathrm{a}}_2\mathrm{C}{\mathrm{u}}_3{\mathrm{O}}_{6+\mathrm{x}}$ (Y-123) single crystals. These results i…