The second order Raman spectrum of calcium fluoride

Krishnan, R. S. ; Krishnamurthy, N. (1965) The second order Raman spectrum of calcium fluoride Journal de Physique, 26 (11). pp. 633-636. ISSN 0302-0738

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The second-order Raman spectrum of calcium fluoride recorded recently by Russell, using a He-Ne laser source, is discussed in the light of current theories on the dynamics of crystals. The observed spectrum of CaF2 is examined in detail with a calculation of the frequencies of the supercell modes using the lattice dynamic models of Ramanathan and Ganesan and Srinivasan, with the selection rules for the combinations from the critical points X for CaF2 structures. Satisfactory explanations have been given for most of the observed second-order frequency shifts.

Item Type:Article
Source:Copyright of this article belongs to EDP Sciences.
Keywords:Calcium Compounds; Lattice Dynamics; Raman Spectra
ID Code:30588
Deposited On:23 Dec 2010 13:17
Last Modified:17 May 2016 13:13

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