Kp. Jain et al., RAMAN-SCATTERING LINE-SHAPES AS A PROBE OF THE ORDER-PARAMETER SYMMETRY IN HIGH - T-C SUPERCONDUCTORS, Physica. C, Superconductivity, 235, 1994, pp. 1077-1078
We present a microscopic many-body multichannel theory of interference
effects between Raman scattering from phonon (discrete) and gap (cont
inuum) pair electronic excitations in a superconductor with d(x2)-(y2)
pairing symmetry. The theoretical results so obtained give a quantita
tive description of our low temperature Raman scattering experiments o
n laser ablated nearly twin-free superconducting thin films of YBa2Cu3
O7.