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Showing 1 to 4 of 4 for “"Davydov splitting"”.
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Raman Scattering Study of Interactions of Cyanide Impurities in Potassium-Chloride Under Variation of Temperature and Concentration (near-Neighbor Pairing, Davydov Splitting, Motional Narrowing)
… with non-near-neighbor defects in the lattice. A splitting has been observed in a spectral feature attributed to CN('-) pairs and attributed to a dynamical interaction (Davydov splitting). This suggests a model for nearest-neighbor pairing. The relative positions and intensities of downshifted …
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Quantum chemistry and surface hopping dynamics of azobenzenes
… to a surface. Specifically, the exciton (Davydov) splitting between states of interest is determined from first-principles calculations with the help of natural transition orbital analysis, allowing for insight into the nature of excited states. In the third paper, nonadiabatic molecular …
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A theoretical study of molecular crystals
… and Raman mode pairs, explained as factor-group (Davydov) splitting, was in good agreement with the observed and also largely justified previous vibrational band assignments based on one-dimensional chain models. The hydrogen-amplitude-weighted phonon DOS at 0 GPa was compared to the …
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Ultrafast exciton relaxation in quasi-one-dimensional perylene derivatives
… model being consistent with the exciton model of Davydov-split states, the pump-probe anisotropy calls for an explanation beyond the models presently available. At excitation densities 10^(19)cm^(-3), the major de-excitation mechanism for the relaxed excitons is exciton-exciton annihilation, …