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Two-phonon Raman scattering of light in argon at low temperatures

✍ Scribed by J. G. Leese; G. K. Horton; E. R. Cowley

Publisher
Springer US
Year
1979
Tongue
English
Weight
346 KB
Volume
36
Category
Article
ISSN
0022-2291

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✦ Synopsis

The two-phonon Raman spectrum of solid argon at 19 K has been calculated using the point-dipole model, with phonon frequencies derived from a model fitted to neutron scattering experiments. The positions of peaks in the calculated spectra correlate well with peaks in the measured results. In order to obtain correctly the sharpness of the peaks it is necessary to include a small linewidth in the phonon spectral[unctions. Some discrepancies remain, which may show the inadequacy of the point-dipole matrix element, assuming that the correction of the data for background, etc. is reliable.

*Work submitted in partial fulfillment of the requirements of the Ph.D. degree at Rutgers University.

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