We argue that Raman scattering in B1g symmetry allows one to distinguish between phonon-mediated and magnetically mediated d -wave superconductivity. In spin-mediated superconductors, B1g Raman intensity develops a resonance at a frequency Ωres <2 Δmax, whose origin is similar to a neutron resonance. In phonon-mediated d -wave superconductors, such a resonance does not develop. Several extensions of the argument are presented.
|Original language||English (US)|
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|State||Published - 2006|