Calculation of the Raman frequency shifts for the α phase of solid oxygen
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KünyeYurtseven, H., Tarı İlgin, Ö. (2017). Calculation of the Raman frequency shifts for the α phase of solid oxygen. Optik - International Journal for Light and Electron Optics. 128. 2017, 113–120.
We calculate in this study the Raman frequencies of the two librons and one vibron at various pressures at constant temperatures of 10 K and also at the temperatures of 6 and 18 K by using the volume data from the literature through the mode Grüneisen parameter for the α phase of oxygen. The Raman frequency shifts calculated for the pressure-induced librons and vibron, agree with the experimental frequency shifts in most cases, in particular at low pressures for α−O2. This shows that the Raman frequency shifts can be calculated adequately from the volume by means of the mode Grüneisen parameter using the method given here for the α-phase of oxygen or more generally for molecular solids.