Abstract
AbstractA theory of the resonance Raman scattering from optical phonons is developed for disordered solids which can be described by the smooth random field (SRF)model. The disorder influences only the electronic subsystem but not the vibronic one. Despite the Q = 0 selection rule is broken, practically no change of the scattering spectrum due to disorder results within the SRF‐ model. The dispersion of the scattering cross‐section is calculated for the two cases of randomly fluctuating energy gap and of random electric field. The scattering cross‐section of the disordered system can be related to that of a crystal by means of an integral representation similar to the Redfield representation of the dielectric function.
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