Determination of the Coupling Coefficient C(ν) from the Calculations of the Low-frequency Raman Spectrum in PMMA

Abstract

Using the atom-atom potentials method, we have calculated the low-frequency Raman spectra of molecular crystal model with elements of disorder (Poly-Methyl-Methacrylate) PMMA that has a flexible molecule. Based on the results the coupling factor C(ν) has been calculated. Anharmonicity of vibrations, electro-optical anharmonicity, and disorder were taken into account.

arXiv comment2 pages, 2 figures