A low-symmetry (Cz v) model of the lattice disturbance in the systemKBr :Sm*+ is employed to calculate the vibronic sideband structure of a 4 f 4 f transition. The result yields improvement over earlier calculations, which were based on higher-symmetry models. The improvement is such that the chosen model may be considered to be realietic.
Ein Modell niederer Symmetrie
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