physica status solidi (b) · 1976 · 13 citations · 5 references
Natural SciencesChemistryPhysicsInorganic ChemistrySolid State PhysicsSpectroscopyCrystal ChemistryInfrared SpectroscopyInorganic MaterialsInorganic SpectroscopyOptical Properties Of SolidsOptical SpectroscopyInfrared Absorption SpectraInfrared Absorption SpectroscopyInfrared SpectraInorganic CrystalsStrontium SaltsTemperature DependenceTemperature Dependence Of Absorption SpectraTemperature Effects On Spectra
Abstract Reflective infrared spectra of three single crystals of strontium nitrate, barium nitrate, and lead nitrate are investigated between 10 and 3500 cm −1 at temperatures from 10 to 293 K. The temperature behaviour of the dispersion parameters, frequencies, strengths, and damping obtained from classical dispersion relation is analyzed in order to compare, first the miscellaneous modes of the same crystal and then of different crystals. The case of Sr(NO 3 ) 2 which presents an anomaly in the infrared spectra corresponding to a phase transition is studied in more depth.
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Pressure Dependence of Infrared Eigenfrequencies of KCl and KBr
C. Postmus, John R. Ferraro, S. S. Mitra · Physical Review · 1968 · 171 citations
Natural Sciences, Chemistry, Physics +15