Abstract
AbstractA theory for Raman band shapes is developed by using the stochastic model. The correlation between electronic and vibrational dephasing is taken into account explicitly. Raman bands become significantly asymmetric in the case of a strong correlation. The Raman band shape can therefore be used to estimate the extent of correlation between the electronic and vibrational dephasing processes. The fact that Raman bands are usually Lorentzian means that the two dephasing processes are not strongly correlated in many cases. The microscopic aspect of the dephasing processes is discussed.
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