Journal of Physics C Solid State Physics · 1976 · 23 citations · 10 references
Natural SciencesChemistryMaterials ScienceMaterials PhysicsOptical MaterialsSpectroscopyAbsorption SpectroscopyInfrared Optical MaterialsInfrared SpectroscopyInorganic SpectroscopyOptical SpectroscopyVibrational SpectroscopyAbsorption SpectraAbsorption SpectrumAbsorption Spectrum CalculationInfrared Absorption SpectraInfrared Absorption SpectroscopyInfrared SpectraNormal ModesSilica-based Materials
Computed infrared absorption spectra, based on the point charge model are presented for vitreous SiO2, GeO2 and BeF. Wherever detailed comparison is available, the calculated relationship between frequency spectrum and absorption spectrum is found to agree well, in most respects, with that given by experiment. In particular, it is noted that the positions of peaks in the infrared spectrum need not coincide closely with those of peak in the frequency spectrum.
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