INFRARED REFLECTION MEASUREMENTS OF SOME CUBIC IONIC CRYSTALS

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1964

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Ohio State University

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A new dispersion analysis is proposed to fit the data available from infrared reflection measurements of cubic ionic crystals such as sodium chlorate and bromate in the $1000 cm^{-1}$ region. The agreement between theory and experiment is obtained by the trial and error method, (a high speed 1620 IBM computer is used). New values are determined for infrared oscillator strengths of the chlorate or bromate $C_{3v}$ ions, and for the effective charge of the electron which is found to be 0.52 e. On the other hand, vibrational frequencies and damping constants are very close to the usual ones obtained from Raman spectra or from Drude-Lorentz classical dispersion analysis.

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$\dag$ Present address: Laboratory of Molecular Spectroscopy and Infrared Studies, The Ohio State University, Columbus, Ohio, 43210.
Author Institution: Laboratoire de Physique, Mol\'{e}culaire et Cristalline de la Facult\'{e} des Sciences

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http://hdl.handle.net/1811/14559

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Abstracts of OSU International Symposium on Molecular Spectroscopy 1960-1969