Light scattering spectrum of disordered molecular crystals: KCN |
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Authors: | W. Dultz |
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Affiliation: | Fachbereich Physik der Universität Ragensburg, Germany |
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Abstract: | We have investigated the effect of the low temperature order-disorder phase transitions on the Raman spectrum of KCN. In the disordered cubic room temperature phase we only find a broad central component in the spectrum which sharpens near the transition temperature at 168K. From the doubling of the librational mode of the CN--molecules we conclude that an antipolar orientation of the CN--molecules is probable for the low temperature phase below 83 K. |
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