Resonant Raman Scattering by Lo Phonons in II-VI Compounds and Diluted Magnetic Semiconductors
Resonant Raman scattering by LO phonons is an optical method which provides insight into the relations between lattice-dynamical and electronic properties of crystals. A resonant enhancement of the Raman scattering efficiency is observed whenever the energy of the incident photon approaches a critical point in the combined density of states of electronic interband transitions. By analyzing the energy dependence and the absolute values of the Raman efficiency detailed information is obtained about the electron-phonon interactions, involved in the scattering process, and about band-structure parameters as gap energy E 0 , gap broadening η and the optical deformation potential Dopt.
KeywordsScattered Photon Zeeman Splitting Resonance Behaviour Raman Tensor Resonant Raman Scattering
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